Color profiles and night mode - OnePlus 6T Questions & Answers

Hey guys,
so far I’m really happy with my new 6T. But I’ve found one bug which I’d like to see fixed.
I like to use either the sRGB or the DCI-P3 color profile as the standard color profile is just too saturated and contrasty for my liking. And at night, I’d like to use the display night mode, to reduce blue light. Unfortunately, if the screen is off and I wake up the phone, (doesn’t matter if it’s via face unlock or screen unlock) the screen changes itself to Standard color profile and you can slowly see the night mode take effect – but on top of the standard color profile which is, as mentioned above, not my cup of tea. It happens with both sRGB and DCI-P3 profiles and night mode enabled.
Only if you then turn night mode off again, you can literally see the colors jump back to your original set profile. Which obviously cannot and should not be the intended way night mode works, as night mode also reduces contrast and saturation. This can be seen if you have set the color profile to Standard in the first place and then turn on night mode, which basically shifts the colors to sRGB. Curiously enough, if you then lock the phone and wake it up, everything is as it should be and as I'd like it to be when sRGB is the set profile, meaning the color profile stays sRGB like and night mode is in effect.
I’m running completely stock Oxygen OS 9.0.5., no root, didn’t unlock bootloader or anything.
Does anyone else experience this behavior? Any help or suggestions are greatly appreciated!
Thanks!

I've been trying to find an answer to this issue since I got the phone. It is appalling that both ambient display and the lock screen are not affected by night mode. It is completely counteractive to how night mode should work.
And I have no idea why they disable color profiles when in night mode. In the settings menu, once you enable night mode, the screen calibration option is greyed out. But it is clearly not a technical limitation because enabling sRGB and then night mode produces the proper effect of a night-shifted sRGB color space. Waking the phone at night turns night mode off on the lock screen, and puts it in standard profile, then shifts to night-shifted standard profile after unlocking. I hate it.
If you come across an answer, please post it back here so others (and I) can find it.
Also, small technical note: night mode does not affect saturation or contrast or color space, only color temperature. sRGB is an entirely different color space with different saturation and gamma curves.

rriegner said:
I've been trying to find an answer to this issue since I got the phone. It is appalling that both ambient display and the lock screen are not affected by night mode. It is completely counteractive to how night mode should work.
And I have no idea why they disable color profiles when in night mode. In the settings menu, once you enable night mode, the screen calibration option is greyed out. But it is clearly not a technical limitation because enabling sRGB and then night mode produces the proper effect of a night-shifted sRGB color space. Waking the phone at night turns night mode off on the lock screen, and puts it in standard profile, then shifts to night-shifted standard profile after unlocking. I hate it.
If you come across an answer, please post it back here so others (and I) can find it.
Also, small technical note: night mode does not affect saturation or contrast or color space, only color temperature. sRGB is an entirely different color space with different saturation and gamma curves.
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Thanks for your reply. Glad I'm at least not the only one noticing this issue.
As to your last statement, I would've thought so too. But this does not seem to be the case here. If you set the color profile to standard and then turn on night mode, the color space gets changed to sRGB, at least from what I can see. It looks completely different than the falsely activated night shifted standard profile, and looks exactly like the night mode in top of the sRGB mode, so less saturation and contrast (gamma). I don't know if this is intentional but makes it all the more confusing, because it retains the combination of sRGB + night mode even after locking and unlocking.

ef_x said:
Thanks for your reply. Glad I'm at least not the only one noticing this issue.
As to your last statement, I would've thought so too. But this does not seem to be the case here. If you set the color profile to standard and then turn on night mode, the color space gets changed to sRGB, at least from what I can see. It looks completely different than the falsely activated night shifted standard profile, and looks exactly like the night mode in top of the sRGB mode, so less saturation and contrast (gamma). I don't know if this is intentional but makes it all the more confusing, because it retains the combination of sRGB + night mode even after locking and unlocking.
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Wow, you are exactly right. I never thought to try that method, but I agree with your assessment. In standard calibration, night mode also toggles sRGB on and off. This is not affected by lock.
In both sRGB and DCI-P3, toggling night mode does not change calibration, but waking from lock leaves it stuck in standard calibration until you toggle night mode again.
And in all scenarios, the lock screen is never in night mode. Also, the add fingerprint page disables night mode and sticks you back into standard calibration with night mode, no matter which calibration you had selected. So the add fingerprint page acts exactly like the lock screen. This leads me to believe that the fingerprint sensor needs a very specific color of light to operate. But that doesn't excuse the fact that calibration keeps switching and getting stuck. I would think they can override that though.

I just made a post about this on reddit. Maybe up vote it to help increase visibility as this is the first mention I've seen about this issue other than this reddit post.
https://www.reddit.com/r/oneplus/comments/9wkkgj/_/
The whole night mode issues and ambient display going max brightness are super frustrating. This is my first non Nexus/pixel since the oneplus 1, and these small issues are making me question if leaving for a less stable manufacturer was a good idea

After doing some more testing, I've determined this whole ordeal is tied to the fingerprint sensor. Deleting all my fingerprints (disabling it entirely) has resolved all the issues of switching calibrations an night mode toggling. Everything works as it should, except ambient display never is night mode. But the lock screen is in night mode.
I'm personally ok with this for now. Face unlock is very quick, and smart lock keeps my phone unlocked at home at night. Hopefully this gets fixed for real in a future update.

rriegner said:
After doing some more testing, I've determined this whole ordeal is tied to the fingerprint sensor. Deleting all my fingerprints (disabling it entirely) has resolved all the issues of switching calibrations an night mode toggling. Everything works as it should, except ambient display never is night mode. But the lock screen is in night mode.
I'm personally ok with this for now. Face unlock is very quick, and smart lock keeps my phone unlocked at home at night. Hopefully this gets fixed for real in a future update.
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Exactly what i discover. Night mode not works when fingerprint senor is active which means on screen lock and app lock.Don't know weather they do it intentionally(to work fp sensor fine) on not but this is seriously irritating and painful to eyes.

Related

Crappy Automatic Brightness Sensor?

Is it just me or does everyone's Epic's have terrible brightness sensor hardware/software? My sensor seems to have about 2-3 settings of brightness, and goes from completely dim to super bright in random situations and nothing in between.
Cyanogen just posted on his twitter that in the past he changed the sensor's abilities through coding modifications. Could we do something of the sort for the Epic's sensor?
Agreed. The sensor is horrible. Also, the transition between brightness settings when set to automatic is near instant instead of slowly transitioning, which makes it more obvious that its changing brightness.
I would agree that it is terrible. Mine also send to sometimes turn auto brightness back on if I've turned it off.
It would be great if someone found a way to mod the code for it!
Sent from my SPH-D700 using XDA App
I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section. As far as the automatic sensor I would suggest turning off "Power Saving Mode" in the Settings>Sound & Display as well. I've read somewhere that this causes the brightness level to vary on its own.
cfiblc said:
I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section.
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Hehe, that was me. Stay tuned for more. I have coded up and will post, tonight, a new version that will let you modify the brightness curve (from the command line, for now)
As for automatic mode, I have figured out how to modify some aspects of it at the kernel level, such as the ambient light thresholds at which it switches to a different brightness level. By modifying the brightness curve, we can achieve at least some more control. But to make it really good may be significantly harder.
Personally, since manual brightness is always available by swiping horizontally on the status bar, I have little desire to use auto mode anyway.
- linuxuberant
The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.
Firon said:
The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.
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More like they installed an awesome dimmer switch and lights, but the fixture only does three modes; high, medium, and still pretty damn bright.

How to adjust Always On Display (AOD) brightness?

I really love this new Always On Display (AOD) feature, it's really classy and elegant.
But, one thing I noticed is that the brightness level seems to be automatically adjusted, and when its bright it surely drains the battery.
Is there anyway to set this brightness manually? I tried changing the display brightness in manual mode, but it does not seem to use that settings.
Any suggestions would be much appreciated.
I dont think there is an option, if there is i am also interested.
I personally thought the Display sometimes was too bright.
i..e In a Dark Room and the Light was more ambient than it really needed to be.
Then the misses would ask me to turn off the night light lol!
Always On
Dear All, I just bought my S7 Edge and picked it up yesterday. I'm quite impressed with this display!
I thought the same thing you guys tought... The Always On Display is very bright!
But here is some info that I searched over the internet. Don't know about it's reliability, but seems legit.
New Always On Display
An interesting function that first appeared on the Galaxy Note 4 Edge in 2014 was always keeping a portion of the OLED screen on when the phone is off (in standby), so certain content can be displayed all day and all night long, but with a very small power drain that has very little effect on the battery running time. This is possible on an OLED display with a mostly black background because every sub-pixel is independently powered, so black pixels and sub-pixels don’t use any power.
The new Always On Display mode shows various personalized clock, calendar, status messages, notifications, and images on the main screen when the phone is on standby. It measures the ambient light level and has both day and night modes, plus it’s smart enough to stay off when the phone display is face down, or it senses a dark confined space such as a pocket or handbag. The OLED display produces an illuminated main screen image 24 hours a day so you can always discreetly check it with just a glance. As a result, the OLED Always On Display will reduce the need for a smartwatch, which seems likely to become an endangered species. We’ll cover this in more detail below.
Here is where I picked it up. Cheers Guys!
(Received a message with the information that I can't post url's.. ) sorry...
Type this in google, "always on display s7 edge brightnes" then it is the 3rd link in the url contains displaymate
same, it quite bright, and with my testing if you can keep ut at its lowest brightness, it consumes 0.3%/hr. that would be absolutely great.
there is an app always on display plus which helps in that
if you mark on auto brightness , it will be done
I unmarked Auto Brightness and seems not brights
Hello guys did anyone find a solution to this?
metko said:
Hello guys did anyone find a solution to this?
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+1
I've noticed that it is automatically adjusting by the amount of light in the room (and it's quite sensitive, always brighter than needed). It would be great if there was an option to manually set the brightness, but only small bunch of people are actually interested in this.
[email protected] said:
there is an app always on display plus which helps in that
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This app does not changing the actual brightens, seams to be there is no solution yet.
I tried changing the screen brightness to minimum and disabling auto brightness, but the AoD brightness seems to be controlled independently.
Trying out an app called Always On AMOLED - it has a night mode. Gonna test power consumption of both
Mine used to auto adjust but not anymore. I think the last software update changed this.
GS7
I'd love to have an adjustment setting. I'm having the opposite problem as most. Mine isn't bright enough! Oh well. Hope they change that!
AOD brightness fix for Galaxy S9 and S9 Plus. May fix others
This may not help everyone as I am giving you the solution for the S9 and S9 Plus, but look in your settings to see if you have the same thing.
Under 'Lock Screen and Security' select AOD and select 'Show Always'. Once you've selected the Content to Show, disable Auto Brightness then move the slider as far right as possible and underneath that select Show Always.
Job done. Next time you see your AOD it'll be full brightness. It is still not bright enough but better than before. If you then go into 'Clock Style' and change the colour after type and choose a fairly stand out colour, this will make your clock stand out even more.
I hope I've helped at least a few people.
hoi
themaestro023 said:
This may not help everyone as I am giving you the solution for the S9 and S9 Plus, but look in your settings to see if you have the same thing.
Under 'Lock Screen and Security' select AOD and select 'Show Always'. Once you've selected the Content to Show, disable Auto Brightness then move the slider as far right as possible and underneath that select Show Always.
Job done. Next time you see your AOD it'll be full brightness. It is still not bright enough but better than before. If you then go into 'Clock Style' and change the colour after type and choose a fairly stand out colour, this will make your clock stand out even more.
I hope I've helped at least a few people.
Click to expand...
Click to collapse
i feel like its to bright... i want to dim it. dont need it to be that clear.... i wil continue my search....
Threw search and having both s7 and s9+ I noticed the 9+ has the ability to adjust the brightness of the AOD very easily in settings or double tap the screen and u see the settings. Works perfect on the 9+ as for the s7 doesnt have the same settings they both say the latest version available is downloaded but it's an s7.. so I just think that setting dont exist on the s7. The brightness is controlled on it's own and u really have no control manually on the brightness.. I think it's a new thing for new galaxies but the 7 isnt gonna do it.. eh.. so I suggest a contrast color which makes it "brighter" to the eye. And basic and big.. it's for quick glances anyways... sucks tho..

ZE552KL screen flickering at lowest brightness level

I would take a video of this issue, but I don't have a good enough camera. It's really, really hard to capture unless you have good video recording tech, which I don't have. :crying:
My issue is that, when I set the brightness to its lowest level on my Zenfone 3, the screen starts flickering. This is especially noticeable with white backgrounds. You can tell that the screen is flickering (perhaps refreshing?) rapidly and it makes the phone painful to look at.
Someone actually created a thread about this issue here on XDA a few months ago, with a video showing this issue, but unfortunately, the video doesn't capture the flickering properly. Here: https://forum.xda-developers.com/zenfone-3/help/ze520kl-low-screen-light-level-20-t3603502
How to reproduce:
-Turn auto-brightness off
-Slide brightness bar all the way to the left (AKA to the lowest level)
-Open a white background/grayish background or blank page in Chrome
-Screen starts flickering
It happens across the phone, and intermittently. Sometimes it happens, sometimes it doesn't. In Chrome, in games, whatever. I once thought it could be related to charging the phone, but the screen has flickered on low brightness even when my phone wasn't plugged in, and at 70-80% battery. I might try resetting the phone to see if it's a software defect; I really hope it is.
Turning off hardware overlays in Developer Options does not resolve this issue.
I'm currently on ASUS stock Nougat, unrooted. I can't root right now. I don't have any screen overlays apart from CF.Lumen, which isn't set to come on during the day, when the flickering happens, and I don't use any screen color modes apart from the default settings. I also always have auto-brightness turned off.
Just wondering if anyone else is having this issue. I might try recording it one day.
Thanks.
Update 1: Removed my 64GB SD Card from the phone to see if that made a difference. It didn't. So the flickering isn't related to power management, AFAIK.
Next step is to wipe the phone completely, including its cache partition from stock recovery, and set the phone up as new again. It might be a hardware issue, but my fingers are crossed.
I've had this issue since I got the phone, ZE552KL. Turning off auto brightness fixes it for me, so I have a feeling it has more to do with ASUS' auto brightness algorithms than anything else.
sensi277 said:
I've had this issue since I got the phone, ZE552KL. Turning off auto brightness fixes it for me, so I have a feeling it has more to do with ASUS' auto brightness algorithms than anything else.
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Click to collapse
I always have auto-brightness turned off. I think it might have to do with the ambient light sensor. I've tested it using SMMI and it works just fine. But I wish there was a way to disable it, since I don't need it. I'm kind of disappointed in this phone.
I'm going to try a full reset, and perhaps a custom ROM to see if it's a hardware or software issue.

Night mode on lock screen/ambient display?

On the lock screen and ambient display, the display doesn't respect night mode. It is always in "day" mode. Once it unlocks, it fades to night mode. Has anyone else experienced this? Is there a fix to enable night mode on the lock screen/ambient display?
Bump. Has anybody else noticed this?
rriegner said:
Bump. Has anybody else noticed this?
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From several reviews Ive seen the fingerprint sensor needs to flash at max brightness to work then the screen will go to whatever brightness you've selected
mpetruzz said:
From several reviews Ive seen the fingerprint sensor needs to flash at max brightness to work then the screen will go to whatever brightness you've selected
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Click to collapse
It's not the brightness that's the issue though, it's the fact that it's not tinted yellow for night mode.
The brightness flash is still unnecessary though. When registering a fingerprint, the rest of the display is dim, while the green circle is full brightness. There's no reason they can't do the same thing on the lock screen.
While verifying that fact though, I noticed that the fingerprint registration page disables night mode as well, so I guess it is a fingerprint thing after all. I still think it could be implemented better. I wonder if it's possible to counteract the tint from night mode on just the fingerprint sensor light.
I've found the same. A bit annoying. There should be an option in night maybe to disable fingerprint when night mode is on

ambient always on display

Does anyone else has a problem with ambient always on display not working? Most of the time it is there, but even if I turn off the Scheduler, sometimes off for hours, just the black screen. 10.3.10 MIUI
Yes, the same issue for me. Little annoying, but I hope it will be fixed in the next update. Maybe I will for now just turn off the always-on display.
You should read the description
Could you be more specific please?
"To reduce power consumption, items won't be displayed in the following situations:
1. When your device lies in dark for a long time.
2. When DND mode is on"
Haha, didn't saw that, but still, my room wasn't dark at all and it still went off. For now I have just disabled that option, and if that is only big bug I will be super happy.

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