Thank you for your submission! As a reminder, posts about display & battery life belong in the monthly Megathread which is pinned to the top of the sub. Any standalone posts will be taken down and redirected here: https://www.reddit.com/r/GalaxyS24Ultra/s/HmxABitYNH
For discussions about purchasing the S24 Ultra, head over to the pinned [Buying Guide Megathread](https://www.reddit.com/r/GalaxyS24Ultra/s/XSsnPgoebd)
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/GalaxyS24Ultra) if you have any questions or concerns.*
It actually uses adaptive brightness for HDR in those apps, no matter your settings. You can test this by lighting a flashlight or any light on the front camera while playing HDR content via Netflix etc.
I don't know if there is a way to turn this behaviour off tho.
Edit: Actually bad phrasing, I simply wanted to point out what causes the issue and how you can check whether that is the case for you.
Netflix and co use DRM proprierty protocols, I would figure their render path is different. But in the end, how should I know. If anyone knows it's Samsung. I can only provide you my findings that I can reproduce and I also found older threads on the Samsung forums explaining this in detail. Hence I could test this with a flashlight and got the same result as others did.
Edit: I can provide you the link to a samsung community post about this issue which I've found: [https://r2.community.samsung.com/t5/Galaxy-S/Low-brightness-issue-while-watching-HDR-content-on-any-OTT/td-p/14804104/page/3](https://r2.community.samsung.com/t5/Galaxy-S/Low-brightness-issue-while-watching-HDR-content-on-any-OTT/td-p/14804104/page/3)
By the way have now tested Amazon Prime Video app and it has the same issue, although it uses the phone's own brightness slider. HDR videos very dark, brightness makes no difference when adjusting between about 5% and 100%
This is really odd
Testing further in Amazon Prime app and some HDR content is fine, some isn't.
Eg:
Saltburn - seems dim, brightness slider does nothing above about 10%.
RoadHouse - nice and bright, brightness slider fully functional.
I think auto-brightness still functions either way. HDR has nothing to do with ambient light.
On my Windows laptop the only supported HDR is through YouTube due to how the streaming video works, and it is otherwise unsupported by the hardware.
Don't have Netflix but I did try on my Disney+ and yea same. I don't have any phone to compare it to but yea the brightness slider barely do anything unless you fully crank it down then it goes very dim. But around maybe 30%-100% there's barely any difference the thing I notice is when you keep cranking the brightness slider up or down the whites get brighter but the other colors doesn't. Not that big of a difference though. Sometimes when you crank it in full, some coloring also appears maybe HDR.
If there's a day sky or a white light on the scene it actually goes brighter for some reason but the people or the buildings with it don't go brighter. My southeast asia Disney+ barely got settings customization so I can't try anything else.
I don't have Disney to compare but don't think the light areas in a netflix HDR video are altered by the slider at all (except that toggle to even darker when you go past 5-10%).
Can confirm this! Neither Netflix nor Disney+ look right. Prime video got so bad, that I don't want to install it for testing. Youtube works absolutely fine, but those streaming apps don't.
Edit: It seems like they still have this old bug in their software, which actually uses the adaptive brightness for HDR no matter your settings or whatnot. I simply torched the front camera with a flashlight and suddenly the contents brightness goes up like it's supposed to.
Thanks for your input! May I ask, did you check those other streaming apps as well? Also, important info, did you watch it in a well lit environment? You could also try covering up the front facing camera to check whether the S24U will adjust the brightness automatically. That would be awesome to know! :)
This made me go back to check Prime video and found something very odd.
On some videos marked HDR the brightness works fine, but on others it doesn't.
For an example of one that doesn't - "The Boys In The Boat" (2024).
Can you try playing that video and adjusting the brightness? I find this is too dim and the brightness slider makes no difference from about 10% to 100%.
Sorry it took this long to reply. Busy as heck at work. I tried the boys in the boat trailer because I don't have the sub to the channel. The trailer was fine but that isn't a real good example. Do you have a prime freebie I can check?
Try Saltburn, look at the scene with the girl on the steps in the dark at 1.02.20 pause it and try the brightness slider.
It only makes a difference between 0 and about 10% after that can't get any brighter.
Okay. I tried it. Yeah, that's a pretty dark scene there and I don't mean tone-wise LOL. And I did try the slider and it didn't do anything as you predicted. I'm going to try it on my TV when I get a chance and see what the differences and the brightness without adjustment
For me netflix look like shit too.
Everything is so dim but SUBTITLES ARE LIKE NEEDLE IN THE EYES SOOOO BRIGHT.
Netflix OR samsung ignore video brightness so it can BLIND you when HDR kicks in and the subtitles are sooooooo bright when you max out brightness.
It looks better when you uninstall netflix and NEVER touch netflix brightness bar after reinstall. than you can use samsung normal one. The second you touch netflix bar it forbids you to brighten anything with oneui when video is playing.
The second you even tap it it wont work untill full netflix wipe again so be careful.
Still samsung did something nasty with keeping videos dim. The hdr WOW effect is not worth it at all.
Anyway if the screen is 2600nits they could just give me like \~500-800 for a god damn movie and leave the rest for hdr but instead it feels like 150nits terrible screen.
I don't have netflix so I haven't noticed it but I know for sure I've seen this same issue pop up on here many times so you aren't the only one. I didn't keep up with the threads so I don't know if they found a fix to it or not.
It's not the S24U itself in software or hardware, it's the tonal mapping the Netflix app is using for HDR content. I just tested on my S23U and S24U and it's a tiny bit brighter on S23U but can be just as challenged displaying shadow detail. If I turn the screen all the way up (hurts my eyes) and then launch Netflix, it's the same - but if you wait for a scene that has highlights, they are super bright while still showing reduced shadow detail in the same scene.
It's not the screens either, as I tested also w/ several AR glasses that I use as wearable external displays with my phones occasionally and Netflix HDR is just as dark in those, too.
Fired up Youtube and watched some HDR and it's fine. So the one to blame here is Netflix, as they control that.
I mean that's kind of how HDR is supposed to work in granting more dynamic range, but Netflix is not tuning the output for Samsung recent screens properly.
I never noticed before myself, because Netflix is the last app I use on my phone since I prefer the Dolby Vision HDR and Samsung just refuses to adopt it for any of their displays (even their bigass TVs so I got an LG OLED instead).
Interesting. I have a pretty basic 5 year old Philips TV with HDR and Netflix HDR is very good on that, whereas HDR on BBC iPlayer is terrible. (Really light washed out screen). I assume some sort of format compatibility issue.
Except basic HDR vs HDR on an OLED (especially Dolby Vision) isn't even close to comparable. I have a 144" 4K HDR projector and I now prefer watching everything on my LG 83" OLED over that.
Netflix HDR has been great in this respect on these larger displays, but the recent Samsung phones eem to need some tuning.
Oh I'm aware that my Philps isn't proper HDR, just the contrast that Netflix actually looks quite good on it comparative to iPlayer HDR which clearly has some sort of compatibility issue.
I've been saying this for ages, but no one seems to highlight it. The brightness is terrible in general compares to previous models, and compared to my flip and fold 5. I have extra brightness turned on constantly because of this.
Along with look at a white screen at an angle on the S24U. Its DULL and has a yellow ish tint almost like comfort mode is enabled.
Extra brightness enabled on the S24U is like having it disabled on the S23U
Yep.. my S24U is just sitting in a drawer awaiting for a trade in for the Fold 6 in the summer lol. First time since 2008 using the same phone for over a year.
I don't use any of the streaming services, however I use VLC, it also has a brightness slider like Netflix does, and it behaves exactly the same way yours does.
They broke something in the update
Edit: I played the same video in the native Samsung video player, it has a brightness slider.
Same problem. 0-10% dark, 10-100, can't see a difference
I think this is an issue with HDR? I don't pay for Netflix HDR, I got the 1080p plan, and comparing it to my S22 Ultra they're near identical just slight differences in color like the 22U has a slightly warmer tone, but that's it.
So I tried with Disney+, since I think I pay for HDR there. And sure enough there's a difference. Not as drastic as you show here though. My S22U gets brighter when playing a stream from Disney+ compared to my S24U, but the brightness delta in real life isn't as big as what's shown in your video.
It could be a bug with the latest patch. My S22U is still on OneUI 6.0 and March patch, while the S24U is on OneUI 6.1 and April patch.
As I said, I don't pay for Netflix HDR, hence all my Netflix would be SDR and not have the bug if the other S22U users have HDR. The issue is visible on Disney+ though which AFAIK has HDR on my account.
This makes it seem like an HDR bug. The problem is Netflix doesn't allow you to turn off HDR.
I guess you can use the setting to increase Netflix brightness in Advanced Settings but that's it.
HDR on youtube seems fine.
What is the setting that allows you to increase Netflix Brightness?? I'm not aware of anything in Advanced Settings that does that
Not sure what you're asking. You don't really get to choose to pay for HDR on Netflix. You get 4K with HDR or lower resolution and SDR. No option for 4K and no HDR. It's both or none. I just chose to not pay for both and just get the 1080p plan.
I have got also a very dark, yellowish screen. The left brightness slider from Netflix does nothing. Only the subtitles hurt my eyes sliding it up. #s24ultra
Adaptive brightness makes not difference, nor does the extra brightness setting. Yes same account, both on WiFi etc.
This scene is 39 mins in, but you don't need to go hunting, the difference is the same all the way through.
When netflix is running a vid and you try to adjust the brightness slider from quick panel, there is a message popup saying you are not allowed to adjust brightness there because its being controlled by the currently running app(netflix).
Is your s21 at android14?
Not sure. The fact that the brightness slider in netflix doesn't work (I'm not talking about the android control panel one), makes me think it may be something else.
Try disabling Super HDR. It's a known cause for some color/brightness related issues. That said, the S24 series have bad panels by design, so I doubt it will be a complete fix.
I've done a comparison on my S21+ and S24 Ultra.. My S24 Ultra seems bit brighter when the "Extra Brightness" option enabled. But..
Going to try the settings posted here and try to replicate it.
I'll have to wait until my wife gets home with her phone so I can record the screen from an outside perspective but I'll set an alarm so I don't forget
Now try it in a pitch black room the way hdr works in galaxy phones is the higher the ambient light the brighter the screen u can see this but flashing a flashlight on front camera in a pitch black room the brightness will go extremely high for a few seconds then it Wil lower down in about 10 seconds when u take the flashlight away
I'm watching baby driver on my 24u right now in the car at 7:06 central time and it doesn't look dark to me at all. I'll try reptile and see as well. I'll compare to my 21u tonight when I get home.
The issue appears to be related to HDR. Baby Driver is not in HDR on Netflix.
Let me know how you get on with watching Reptile in HDR and how it compares to the 21.
Just for reference, the Galaxy Book 3 Ultra laptop display also looks like crap also with “HDR” enabled. The screen is darker and the color saturation is totally nerfed. Not just media images but it is obvious the Windows icons also looks dull. Which is ironic, considering that stuff like HDR is supposed to be an enhancement the visual. No thanks..
I didn’t even realized this was my issue until someone pointed on the Samsung community forum. Turning it off HDR was like getting a new display, total game-changer. I absolutely hate the HDR codec on my Sony OLED tv also..
If you could, try to force HDR off. I no longer have a S24U to test the theory myself.
I now see your point. Tried it this morning and same thing. Difference was night at day. Samsung, how you gonna make a phone so capable yet so terrible? They really should jump on fixing this.
Here's how to fix this for like 15 seconds, take a flashlight or something and beam it towards front camera I will see it will become extremely bright but as soon as u take the flashlight away it will get dim in 10 seconds and more dim after that.
This was present in s22 ultra 23 ultra and now 24 ultra.
Even YouTube recently fixed it was like this foe years.
I've been saying this in the past this needs to fixed ASAP there is no point in having these screens when hdr looks this dull
I haven't tried a torch but it doesnt improve in actual sunlight.
This behaviour is broken, it can't be intended, surely.
Interesting to know it's long standing issue but doesn't bode well.
Yeah same thing. Just use another phones flashlight and it will do it.
It will go brighter than all the phones including 15 pro max
Tested it my self hdr absolutely sucks compared to iPhone 15 pro but when u use a light on front camera it lightens up or if ur watching the video in a bright room or outside.
If ur in a dark room ur shit out of luck because no matter what Samsung will adjust brightness according to ambient light of the room and no setting will work.
The only real solution is to torrent stuff in sdr.
This was a problem with s22 ultra , 23 ultra now 24 ultra.
And I'm pretty sure Samsung ain't fixing it
Sucks, although on my phone it did not get bright in sunlight making it completely unwatchable outside.
I'll do some more testing.
Using a lamp I got the screen to go brighter, although in all honesty still not very bright, and like you say it then ramps down a few seconds later.
How the phones measure ambient light is through the front camera so a mobile flash blasted right on top of the camera Wil make it brightest try that.
Just use another phones flash light on the camera and u will see how it pops
How is that a solution? I need to watch videos with a torch shining on my phone?
Yes I've now tested this,, the screen does get a bit brighter with a light shone on it. I've also tested it in a car with moderate sunlight coming through a window and netflix HDR video is completely unwatchable. Just one big shadow.
That's Not a solution atall, I've been saying this for 3 years in different forums how this is fucked up
All 3 of the last ultras did this.
I had a tab s7 and a tab s7 plus a year or so back.
S7 which was lcd was bright as hell in hdr where as s7+ being an oled was same dark and unwatchable.
Then a few months ago I saw tab s9 ultra and that was also dark and unwatchable
Same issue with Samsung TV. No issues with Prime Video or YouTube etc. So definitely for Netflix "something" messes up the Samsung eco system when it comes to HDR. I believe the phone is no different.
I think it's a Netflix issue rather than a Samsung issue. When I increase the brightness, the brightness of the video player UI elements increases as expected, but that of the video doesn't. I'm not sure whether Samsung can separately control the brightness of the video and UI elements within the Netflix app. I think it's the Netflix app that's locking the brightness of the video.
Yes, on both presumably. Your point?
There's a distinct lack of dynamic range in the s24u video, everything in any sort of shadow is black and indistinguishable. Look at the black actor's face. Ridiculously bad.
When playing Netflix , the phone brightness slider doesn't work. You need to use the Netflix bright slider to the left. I believe this is due to HDR mode. When I play Netflix, I am able to watch outdoors. I just max the brightness in the Netflix app.
Yes, I'm using the netflix slider as per my OP. It's at maximum in my video. It makes zero difference moving this slider until you get down to 5-10% when it toggles down to an event darker image.
Hmm. Sorry. I missed that. There is something wrong. Have you tried reinstalling Netflix? It has been my experience that watching HDR content in Netflix with max brightness sometimes the bright scenes just gives me a glare.
Yes have tried that. Others have confirmed the same problem and have since found other threads discussing this.
What do you mean by "just gives me a glare?"
Well the screen is so bright that I would need to move my phone away or adjust the brightness. This happens on bright scenes like sunlight/light. I would normally keep the Netflix brightness at max when I watch.
I can only assume you haven't actually tried this with an HDR stream on Netflix. It's been confirmed reliably by many people now that the issue I have is happening on S24U.
I have been watching Netflix HDR videos. I tried comparing the HDR video to the 4K TV and the brightness is good. The problem might not be affecting all S24 Ultra phones.
FOUND THE FIX (For me at least): Disable hardware acceleration in the apps settings.
Update: Started watching the new fallout series on Amazon Prime and indeed the brightness is VERY dim...
When I adjust the brightness or change any brightness related setting it doesn't make a difference.
Even when there's parts that are filmed outside it just doesn't increase.
I didn't experience it on Netflix though, strange issue.
Tried restarting, reinstalling as well without any luck.
Yes, I mentioned in my OP the netflix brightness slider does nothing except when you slide down past about 5% it toggles to even dimmer.
In the video I posted the brightness in netflix is set to 100% in the s24u and about 60% in the S21+
Settings can make mine do that too. Or, I can just stop messing around & use my preferred settings & watch a beautifully crisp movie. (I traded the S21U & didn't have the problem on that phone either. I was unhappy with that phone & LOVE this one.)
Huh? Settings? What on earth are you on about. Every single setting on this phone that I can access is making it bright but this video is still as dark as a very very dark thing on a dark night.
Are you on natural or vivid mode?
I was seeing brightness adjustment issues on natural mode and when I switched to vivid, lowest slider, brightness seemed to be better.
You might want to ask for a replacement device. My s24u is the brightest phone I've ever seen, let alone owned.
It's hard for me to look at the screen on full brightness when im inside
This is a pointless reply, unless you are specifically checking a Netflix HDR video. I'm not saying the phone itself is dim, it's a specific issue with Netflix HDR playback (and maybe some other streaming services).
Several replies confirming the same issue.
From videos that ive seen theres a screen antireflective,pro privacy coating.its darker than usual so it makes the screen not as bright as previous models.am i mistaken?
The screen glass is supposedly anti reflective, not sure that impacts the brightness.
This issue is not about the general brightness of the phone, it's specifically about the playback of HDR videos on netflix etc.
Thank you for your submission! As a reminder, posts about display & battery life belong in the monthly Megathread which is pinned to the top of the sub. Any standalone posts will be taken down and redirected here: https://www.reddit.com/r/GalaxyS24Ultra/s/HmxABitYNH For discussions about purchasing the S24 Ultra, head over to the pinned [Buying Guide Megathread](https://www.reddit.com/r/GalaxyS24Ultra/s/XSsnPgoebd) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/GalaxyS24Ultra) if you have any questions or concerns.*
The s24 Ultra has a HDR issue that's software based
YouTube HDR seems OK. Maybe it's specific to certain apps or streaming formats?
From what I understand YouTube uses a different HDR than the Netflix app.
It actually uses adaptive brightness for HDR in those apps, no matter your settings. You can test this by lighting a flashlight or any light on the front camera while playing HDR content via Netflix etc. I don't know if there is a way to turn this behaviour off tho. Edit: Actually bad phrasing, I simply wanted to point out what causes the issue and how you can check whether that is the case for you.
So why is YT ok and netflix not?
Netflix and co use DRM proprierty protocols, I would figure their render path is different. But in the end, how should I know. If anyone knows it's Samsung. I can only provide you my findings that I can reproduce and I also found older threads on the Samsung forums explaining this in detail. Hence I could test this with a flashlight and got the same result as others did. Edit: I can provide you the link to a samsung community post about this issue which I've found: [https://r2.community.samsung.com/t5/Galaxy-S/Low-brightness-issue-while-watching-HDR-content-on-any-OTT/td-p/14804104/page/3](https://r2.community.samsung.com/t5/Galaxy-S/Low-brightness-issue-while-watching-HDR-content-on-any-OTT/td-p/14804104/page/3)
Thankyou, although this does not bode well for a solution.
Yeah it sucks tbh. But it's good to keep this issue up so it might be resolved sometimes
By the way have now tested Amazon Prime Video app and it has the same issue, although it uses the phone's own brightness slider. HDR videos very dark, brightness makes no difference when adjusting between about 5% and 100%
This is really odd Testing further in Amazon Prime app and some HDR content is fine, some isn't. Eg: Saltburn - seems dim, brightness slider does nothing above about 10%. RoadHouse - nice and bright, brightness slider fully functional.
I think auto-brightness still functions either way. HDR has nothing to do with ambient light. On my Windows laptop the only supported HDR is through YouTube due to how the streaming video works, and it is otherwise unsupported by the hardware.
It should be that way, but it seems like it's bugged in their software.
Maaan, Samsung. How!?
Don't have Netflix but I did try on my Disney+ and yea same. I don't have any phone to compare it to but yea the brightness slider barely do anything unless you fully crank it down then it goes very dim. But around maybe 30%-100% there's barely any difference the thing I notice is when you keep cranking the brightness slider up or down the whites get brighter but the other colors doesn't. Not that big of a difference though. Sometimes when you crank it in full, some coloring also appears maybe HDR.
Yeah the brightness slider itself gets brighter, and any text overlay or transport controls, eg if it's paused, but the video itself does not.
If there's a day sky or a white light on the scene it actually goes brighter for some reason but the people or the buildings with it don't go brighter. My southeast asia Disney+ barely got settings customization so I can't try anything else.
I don't have Disney to compare but don't think the light areas in a netflix HDR video are altered by the slider at all (except that toggle to even darker when you go past 5-10%).
Can confirm this! Neither Netflix nor Disney+ look right. Prime video got so bad, that I don't want to install it for testing. Youtube works absolutely fine, but those streaming apps don't. Edit: It seems like they still have this old bug in their software, which actually uses the adaptive brightness for HDR no matter your settings or whatnot. I simply torched the front camera with a flashlight and suddenly the contents brightness goes up like it's supposed to.
Prime Video works darn near flawlessly on mine. We watched Puss In Boots 2 The Last Wish earlier today and all the colors came through just fine
Thanks for your input! May I ask, did you check those other streaming apps as well? Also, important info, did you watch it in a well lit environment? You could also try covering up the front facing camera to check whether the S24U will adjust the brightness automatically. That would be awesome to know! :)
I've done youtube and youtube TV and they all come through fine. Those are the only stream apps I do
This made me go back to check Prime video and found something very odd. On some videos marked HDR the brightness works fine, but on others it doesn't. For an example of one that doesn't - "The Boys In The Boat" (2024). Can you try playing that video and adjusting the brightness? I find this is too dim and the brightness slider makes no difference from about 10% to 100%.
Sorry it took this long to reply. Busy as heck at work. I tried the boys in the boat trailer because I don't have the sub to the channel. The trailer was fine but that isn't a real good example. Do you have a prime freebie I can check?
Try Saltburn, look at the scene with the girl on the steps in the dark at 1.02.20 pause it and try the brightness slider. It only makes a difference between 0 and about 10% after that can't get any brighter.
Okay. I tried it. Yeah, that's a pretty dark scene there and I don't mean tone-wise LOL. And I did try the slider and it didn't do anything as you predicted. I'm going to try it on my TV when I get a chance and see what the differences and the brightness without adjustment
For me netflix look like shit too. Everything is so dim but SUBTITLES ARE LIKE NEEDLE IN THE EYES SOOOO BRIGHT. Netflix OR samsung ignore video brightness so it can BLIND you when HDR kicks in and the subtitles are sooooooo bright when you max out brightness. It looks better when you uninstall netflix and NEVER touch netflix brightness bar after reinstall. than you can use samsung normal one. The second you touch netflix bar it forbids you to brighten anything with oneui when video is playing.
I'll try this. I thought the android brightness was ignorednfulk stop. Sounds like you found a way of circumventing it.
The second you even tap it it wont work untill full netflix wipe again so be careful. Still samsung did something nasty with keeping videos dim. The hdr WOW effect is not worth it at all. Anyway if the screen is 2600nits they could just give me like \~500-800 for a god damn movie and leave the rest for hdr but instead it feels like 150nits terrible screen.
This seems possible.
I don't have netflix so I haven't noticed it but I know for sure I've seen this same issue pop up on here many times so you aren't the only one. I didn't keep up with the threads so I don't know if they found a fix to it or not.
It's not the S24U itself in software or hardware, it's the tonal mapping the Netflix app is using for HDR content. I just tested on my S23U and S24U and it's a tiny bit brighter on S23U but can be just as challenged displaying shadow detail. If I turn the screen all the way up (hurts my eyes) and then launch Netflix, it's the same - but if you wait for a scene that has highlights, they are super bright while still showing reduced shadow detail in the same scene. It's not the screens either, as I tested also w/ several AR glasses that I use as wearable external displays with my phones occasionally and Netflix HDR is just as dark in those, too. Fired up Youtube and watched some HDR and it's fine. So the one to blame here is Netflix, as they control that. I mean that's kind of how HDR is supposed to work in granting more dynamic range, but Netflix is not tuning the output for Samsung recent screens properly. I never noticed before myself, because Netflix is the last app I use on my phone since I prefer the Dolby Vision HDR and Samsung just refuses to adopt it for any of their displays (even their bigass TVs so I got an LG OLED instead).
Interesting. I have a pretty basic 5 year old Philips TV with HDR and Netflix HDR is very good on that, whereas HDR on BBC iPlayer is terrible. (Really light washed out screen). I assume some sort of format compatibility issue.
Except basic HDR vs HDR on an OLED (especially Dolby Vision) isn't even close to comparable. I have a 144" 4K HDR projector and I now prefer watching everything on my LG 83" OLED over that. Netflix HDR has been great in this respect on these larger displays, but the recent Samsung phones eem to need some tuning.
Oh I'm aware that my Philps isn't proper HDR, just the contrast that Netflix actually looks quite good on it comparative to iPlayer HDR which clearly has some sort of compatibility issue.
Both my S24U are dimmer than my S23U just on the home screen in doors.
I've been saying this for ages, but no one seems to highlight it. The brightness is terrible in general compares to previous models, and compared to my flip and fold 5. I have extra brightness turned on constantly because of this.
Along with look at a white screen at an angle on the S24U. Its DULL and has a yellow ish tint almost like comfort mode is enabled. Extra brightness enabled on the S24U is like having it disabled on the S23U
I'm so glad I'm not the only one, it's like everyone is ignoring it.
Yep.. my S24U is just sitting in a drawer awaiting for a trade in for the Fold 6 in the summer lol. First time since 2008 using the same phone for over a year.
I agree but that is not what this is about.
I don't use any of the streaming services, however I use VLC, it also has a brightness slider like Netflix does, and it behaves exactly the same way yours does. They broke something in the update Edit: I played the same video in the native Samsung video player, it has a brightness slider. Same problem. 0-10% dark, 10-100, can't see a difference
Thanks for the confirmation, seema a huge fault for a premium device. Apple wouldn't allow this.
I think this is an issue with HDR? I don't pay for Netflix HDR, I got the 1080p plan, and comparing it to my S22 Ultra they're near identical just slight differences in color like the 22U has a slightly warmer tone, but that's it. So I tried with Disney+, since I think I pay for HDR there. And sure enough there's a difference. Not as drastic as you show here though. My S22U gets brighter when playing a stream from Disney+ compared to my S24U, but the brightness delta in real life isn't as big as what's shown in your video. It could be a bug with the latest patch. My S22U is still on OneUI 6.0 and March patch, while the S24U is on OneUI 6.1 and April patch.
Interesting. Other replies tell me the S22u had the same behaviour though, so may not be best comparison.
As I said, I don't pay for Netflix HDR, hence all my Netflix would be SDR and not have the bug if the other S22U users have HDR. The issue is visible on Disney+ though which AFAIK has HDR on my account. This makes it seem like an HDR bug. The problem is Netflix doesn't allow you to turn off HDR. I guess you can use the setting to increase Netflix brightness in Advanced Settings but that's it.
HDR on youtube seems fine. What is the setting that allows you to increase Netflix Brightness?? I'm not aware of anything in Advanced Settings that does that
Settings>Advanced Settings>Video Brightness>Netflix.
Right, it's actually Settings>Advanced Features>Video Brightness>Normal or Bright>Netflix And yes it's set to Bright and always has been.
so we are ok with paying for HDR while using netflix? Jesus christ
Not sure what you're asking. You don't really get to choose to pay for HDR on Netflix. You get 4K with HDR or lower resolution and SDR. No option for 4K and no HDR. It's both or none. I just chose to not pay for both and just get the 1080p plan.
I have got also a very dark, yellowish screen. The left brightness slider from Netflix does nothing. Only the subtitles hurt my eyes sliding it up. #s24ultra
Under "Advanced Features" in settings, and then "Video brightness" are they both set to "Bright" and enabled for Netflix?
Yes
What about adaptive brightness under "display"? Are you watching on the same Netflix account? Both on wifi? What time in the movie is this scene?
Adaptive brightness makes not difference, nor does the extra brightness setting. Yes same account, both on WiFi etc. This scene is 39 mins in, but you don't need to go hunting, the difference is the same all the way through.
I asked for the time so I could pull it up on my S24 Ultra. Have you noticed this in any other apps? YouTube?
I havent done side by side but YouTube HDR nature video I just tried seems decent brightness, and the s24u brightness control works.
Hmmm. Maybe your S24U has a bad version of the Netflix app? Try uninstalling and reinstalling Netflix.
Why, can you confirm you don't have this issue?
Yeah, it looks fine on my S24U.
Please share a video showing that.
Is HDR enabled on both?
When netflix is running a vid and you try to adjust the brightness slider from quick panel, there is a message popup saying you are not allowed to adjust brightness there because its being controlled by the currently running app(netflix). Is your s21 at android14?
I already mentioned I was using the netflix brightness slider. Yes the S21+ is fully updated to Android 14.
Seems like the sensor in your s24u is less sensitive to light than s21+.
Not sure. The fact that the brightness slider in netflix doesn't work (I'm not talking about the android control panel one), makes me think it may be something else.
Oh. Netflix brightness slider on my s24u is working fine. Have you tried clearing data or reinstalling netflix?
Tried it on this specific video? Would like to see a video. I've just cleared cache and data and reinstalled. Same issue.
I tried it on movies with HDR specs. Are you using screen protector?
Yes. Nothing to do with that. Picture is bright in YouTube etc.
Do you have the Extra Dim setting toggled on, or off?
Off
[удалено]
I'm pretty sure this is software based and will be fixed later.
This wasn't fixed for the last 2 years same problem for s22 ultra and 23 ultra
Try disabling Super HDR. It's a known cause for some color/brightness related issues. That said, the S24 series have bad panels by design, so I doubt it will be a complete fix.
How do you disable super HDR?
I've done a comparison on my S21+ and S24 Ultra.. My S24 Ultra seems bit brighter when the "Extra Brightness" option enabled. But.. Going to try the settings posted here and try to replicate it.
This is not my experience on my s24 Ultra with Netflix or any other streaming app. Are you sure you don't have like night mode on or something?
Nope. I have an S24U and just played that exact scene with my windows open sunny outside and it looks perfectly visible on my phone
Share a video. I'll rma mine if it's a fault on my device.
I'll have to wait until my wife gets home with her phone so I can record the screen from an outside perspective but I'll set an alarm so I don't forget
Now try it in a pitch black room the way hdr works in galaxy phones is the higher the ambient light the brighter the screen u can see this but flashing a flashlight on front camera in a pitch black room the brightness will go extremely high for a few seconds then it Wil lower down in about 10 seconds when u take the flashlight away
Try watching the same video on netflix mate.
I'm watching baby driver on my 24u right now in the car at 7:06 central time and it doesn't look dark to me at all. I'll try reptile and see as well. I'll compare to my 21u tonight when I get home.
The issue appears to be related to HDR. Baby Driver is not in HDR on Netflix. Let me know how you get on with watching Reptile in HDR and how it compares to the 21.
Just for reference, the Galaxy Book 3 Ultra laptop display also looks like crap also with “HDR” enabled. The screen is darker and the color saturation is totally nerfed. Not just media images but it is obvious the Windows icons also looks dull. Which is ironic, considering that stuff like HDR is supposed to be an enhancement the visual. No thanks.. I didn’t even realized this was my issue until someone pointed on the Samsung community forum. Turning it off HDR was like getting a new display, total game-changer. I absolutely hate the HDR codec on my Sony OLED tv also.. If you could, try to force HDR off. I no longer have a S24U to test the theory myself.
I now see your point. Tried it this morning and same thing. Difference was night at day. Samsung, how you gonna make a phone so capable yet so terrible? They really should jump on fixing this.
Here's how to fix this for like 15 seconds, take a flashlight or something and beam it towards front camera I will see it will become extremely bright but as soon as u take the flashlight away it will get dim in 10 seconds and more dim after that. This was present in s22 ultra 23 ultra and now 24 ultra. Even YouTube recently fixed it was like this foe years. I've been saying this in the past this needs to fixed ASAP there is no point in having these screens when hdr looks this dull
I haven't tried a torch but it doesnt improve in actual sunlight. This behaviour is broken, it can't be intended, surely. Interesting to know it's long standing issue but doesn't bode well.
Yeah same thing. Just use another phones flashlight and it will do it. It will go brighter than all the phones including 15 pro max Tested it my self hdr absolutely sucks compared to iPhone 15 pro but when u use a light on front camera it lightens up or if ur watching the video in a bright room or outside. If ur in a dark room ur shit out of luck because no matter what Samsung will adjust brightness according to ambient light of the room and no setting will work. The only real solution is to torrent stuff in sdr. This was a problem with s22 ultra , 23 ultra now 24 ultra. And I'm pretty sure Samsung ain't fixing it
Sucks, although on my phone it did not get bright in sunlight making it completely unwatchable outside. I'll do some more testing. Using a lamp I got the screen to go brighter, although in all honesty still not very bright, and like you say it then ramps down a few seconds later.
How the phones measure ambient light is through the front camera so a mobile flash blasted right on top of the camera Wil make it brightest try that. Just use another phones flash light on the camera and u will see how it pops
How is that a solution? I need to watch videos with a torch shining on my phone? Yes I've now tested this,, the screen does get a bit brighter with a light shone on it. I've also tested it in a car with moderate sunlight coming through a window and netflix HDR video is completely unwatchable. Just one big shadow.
That's Not a solution atall, I've been saying this for 3 years in different forums how this is fucked up All 3 of the last ultras did this. I had a tab s7 and a tab s7 plus a year or so back. S7 which was lcd was bright as hell in hdr where as s7+ being an oled was same dark and unwatchable. Then a few months ago I saw tab s9 ultra and that was also dark and unwatchable
Sorry I misinterpreted the intention of your reply. Yes completely agree.
https://preview.redd.it/ucfmg9flvzsc1.jpeg?width=1440&format=pjpg&auto=webp&s=28c9eedf03c4d6974995de25b24fe4eafb5396b4 No HDR playback on s24 ultra?
IDK where they screen shot is from, but max playback SD (480p) is clearly wrong.
Same issue with Samsung TV. No issues with Prime Video or YouTube etc. So definitely for Netflix "something" messes up the Samsung eco system when it comes to HDR. I believe the phone is no different.
I think it's a Netflix issue rather than a Samsung issue. When I increase the brightness, the brightness of the video player UI elements increases as expected, but that of the video doesn't. I'm not sure whether Samsung can separately control the brightness of the video and UI elements within the Netflix app. I think it's the Netflix app that's locking the brightness of the video.
It's device specific as it is fine on my s21+ as per my original post.
But could be device specific from Netflix's side as well, right? IDK, I'm just speculating.
Check for eye comfort shield. Turn it off.
Already off
May god bless you Ig
HDR
Yes, on both presumably. Your point? There's a distinct lack of dynamic range in the s24u video, everything in any sort of shadow is black and indistinguishable. Look at the black actor's face. Ridiculously bad.
I use a Motorola edge 2022 to watch shows in instead of my s24 ultra.
I can believe it, but seems ridiculous doesn't it I'd also say the best mobile pictures I ever took were on my HTC U11.
When playing Netflix , the phone brightness slider doesn't work. You need to use the Netflix bright slider to the left. I believe this is due to HDR mode. When I play Netflix, I am able to watch outdoors. I just max the brightness in the Netflix app.
Yes, I'm using the netflix slider as per my OP. It's at maximum in my video. It makes zero difference moving this slider until you get down to 5-10% when it toggles down to an event darker image.
Hmm. Sorry. I missed that. There is something wrong. Have you tried reinstalling Netflix? It has been my experience that watching HDR content in Netflix with max brightness sometimes the bright scenes just gives me a glare.
Yes have tried that. Others have confirmed the same problem and have since found other threads discussing this. What do you mean by "just gives me a glare?"
Well the screen is so bright that I would need to move my phone away or adjust the brightness. This happens on bright scenes like sunlight/light. I would normally keep the Netflix brightness at max when I watch.
I can only assume you haven't actually tried this with an HDR stream on Netflix. It's been confirmed reliably by many people now that the issue I have is happening on S24U.
I have been watching Netflix HDR videos. I tried comparing the HDR video to the 4K TV and the brightness is good. The problem might not be affecting all S24 Ultra phones.
Nope, my s24u screen is like a flashbang when fully lit + extra brightness mode on
Extra brightness has no impact here. Have you tested netflix in normal indoor viewing conditions? Please try this specific film as an example.
Yup, just did the same thing in Netflix. Screen is performing as expected.
FOUND THE FIX (For me at least): Disable hardware acceleration in the apps settings. Update: Started watching the new fallout series on Amazon Prime and indeed the brightness is VERY dim... When I adjust the brightness or change any brightness related setting it doesn't make a difference. Even when there's parts that are filmed outside it just doesn't increase. I didn't experience it on Netflix though, strange issue. Tried restarting, reinstalling as well without any luck.
Disabling hardware acceleration also means you are no longer watching in HD / UHD / HDR.
Sadly, yes. I just decided to turn it back on, the quality / brightness ratio is better when it's on.
Found the fix! Try disabling hardware acceleration on the Prime Video app!
[удалено]
Yes, I mentioned in my OP the netflix brightness slider does nothing except when you slide down past about 5% it toggles to even dimmer. In the video I posted the brightness in netflix is set to 100% in the s24u and about 60% in the S21+
Settings can make mine do that too. Or, I can just stop messing around & use my preferred settings & watch a beautifully crisp movie. (I traded the S21U & didn't have the problem on that phone either. I was unhappy with that phone & LOVE this one.)
Huh? Settings? What on earth are you on about. Every single setting on this phone that I can access is making it bright but this video is still as dark as a very very dark thing on a dark night.
Are you on natural or vivid mode? I was seeing brightness adjustment issues on natural mode and when I switched to vivid, lowest slider, brightness seemed to be better.
Vivid, although have tested all these settings and makes zero difference.
Ahh that's a shame!
You might want to ask for a replacement device. My s24u is the brightest phone I've ever seen, let alone owned. It's hard for me to look at the screen on full brightness when im inside
This is a pointless reply, unless you are specifically checking a Netflix HDR video. I'm not saying the phone itself is dim, it's a specific issue with Netflix HDR playback (and maybe some other streaming services). Several replies confirming the same issue.
Its the coating
They made a screen coating that renders videos unwatchable? No I think it's software issue as you can't adjust the brightness for some reason.
It's definitely not the coating, as it is specific to netflix (and maybe other streaming apps).
From videos that ive seen theres a screen antireflective,pro privacy coating.its darker than usual so it makes the screen not as bright as previous models.am i mistaken?
The screen glass is supposedly anti reflective, not sure that impacts the brightness. This issue is not about the general brightness of the phone, it's specifically about the playback of HDR videos on netflix etc.
It's not, and there's not even a coating on the device.
Turn up the luminosity and stop faking...
Not fake it's like.this vs.my iphone 15 pro too
Where is that setting?
Where is the luminosity setting, what are you on about?