Yesterday I was at the beach and i turned on the auto brightness setting on my Bionic. The next morning the display brightness is so dim it makes using the device nearly impossible. I set an alarm on the phone. When i woke up the screen was fine. I put it in my pocket and when I pulled it out the screen level was so dim I thought the phone was off. the backlight works. I can clumsily fumble around and navigate the phone for tech support.Please help.
I'm running 10.1.2 Stable CM
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Hello!
I wonder if anyone had this issue. Yesterday suddenly the backlight of my XT894 started to act weirdly. When i pressed the unlock button, the screen would go very bright and then shut off after 2-3 seconds, but I still could swype the unlock screen and hear the unlock click, even with the dark screen. With a little bit of external light I could see the image was there, but the backlight of the screen was not on. I went on to the power shortcuts and disabled the Automatic brightness control, and as soon as I did that the display turned on, very dimly but it turned on. When I set the brightness control to maximum, it still is very low. If i set the brightness to minimum, its almost impossible to see anything. In display settings, the automatic brightness is unchecked and the brightness fader is set to maximum.
I started suspecting the light sensor, so I went ahead and downlaoded a sensor tester app, and the light sensor appeared to be reporting the light levels correctly - low readings in the dark, and much higher readings in direct light.
Is my phone backlight dying? Any idea if this might be due to defective mainboard, or the display itself?
I already did some repairing on the phone myself, so I am comfortable dissassembling it and changing parts. Few months ago I changed the main board because my old one had a broken usb connector, and it worked fine until now.
Any advice would be greatly appreciated!
Thank you in advance!
Best regards,
Konstantin
If I remember right, by default, the maximum auto-brightness is still lower than actual maximum, so if the screen can barely be seen at manual max, it makes sense that the screen is pretty much unviewable with auto on.
Idea:
If you have it installed, boot into Safestrap and see if your brightness is normal.
If not, pull up the diagnostic menu (hold Vol - while powering on iirc, might be Vol - and +).
If your brightness is normal in those, it's probably something gone wonky in Android. If not, your screen backlight might be going and needs replaced. I don't think there's anything on the mainboard that would cause it, aside from the circuitry actually supplying power to the backlight...
Screen replacement actually isn't terrible for the D4, if it comes to that, since it's not fused to the glass (like certain single-piece phones for example...*sideways glance at the S3*).
Hello!
Thank you for your reply!
Effectively something is very wrong with the device. Today I woke up to find it completely unresponsive, had to turn it off by holding the power button for a while. When it turned on again, the whole screen was white with glitchy color lines since the very reboot, and nothing else happens, couldnt even turn it off without unscrewing the battery.
I will put the old main board to see if the other one died.
Thank you again!
Best regards,
Konstantin
This has always been confusing and I am looking for clarification on the Lock Screen/ Screen dimming, etc.
So I went into the display settings and set it not to turn off for 1 minute. Then I checked the power saving settings just to be sure the screen would not go dim or lock after 5 seconds. That did not work. Then I checked the security settings to see if something was over ridding every other time out setting and I am lost. Either these settings have never really worked since the original note and android/ google is lazy or I am not doing something right.
Dose anyone have a step by step walk through of all the settings that would affect when the screen dimms and when it locks? (Sometimes I am running music through blue tooth and I don't want to the screen to dim for specific applications also. There has to be a setting somewhere because Google Maps does not allow the screen to dim or lock when in nav mode.
Snowleopard1900 said:
This has always been confusing and I am looking for clarification on the Lock Screen/ Screen dimming, etc.
So I went into the display settings and set it not to turn off for 1 minute. Then I checked the power saving settings just to be sure the screen would not go dim or lock after 5 seconds. That did not work. Then I checked the security settings to see if something was over ridding every other time out setting and I am lost. Either these settings have never really worked since the original note and android/ google is lazy or I am not doing something right.
Dose anyone have a step by step walk through of all the settings that would affect when the screen dimms and when it locks? (Sometimes I am running music through blue tooth and I don't want to the screen to dim for specific applications also. There has to be a setting somewhere because Google Maps does not allow the screen to dim or lock when in nav mode.
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I really wish someone would have answered your question. Mainly since I have the same freaking problem.
When the phone app is running, I am constantly getting dimmed, seconds only to do something.
Tonight I was using an app that monitors BBQ temperatures. Always dims to fast. Set the screen timeout for 10 minutes. Still dimmed after 30 seconds or so.
How does this work? I'm not sure the screen timeout setting does anything.
The screen diming feature is part of the auto brightness function and works by using the ambiant light sensor to adjust the brightness of the display. According to the amount of light detected in front of the display.
Screen locking happens when you haven't used your device for a specific amount of time.
iceepyon said:
The screen diming feature is part of the auto brightness function and works by using the ambiant light sensor to adjust the brightness of the display. According to the amount of light detected in front of the display.
Screen locking happens when you haven't used your device for a specific amount of time.
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Click to collapse
It dims before it locks. That's what I was referring to. I think the OP was as well.
I set the display for 10 minute timeout. It dims and locks the screen in less than a minute. I can't figure out how to stop it.
Is that a clearer question?
Well my screen dims for some seconds before going out, but, always as per the time I set , for instance, if I set to go out after 5 mins of inactivity, it dims after 4 mins 55 seconds, then goes out, I dont use autobrightness, and I use entertainment mode
It was secure lock time setting.
It was disregarding the screen timeout.
We've used EasyProfiles Pro (profile manager) to activate various settings since HTC Desire days. One thing that the P20 Pro does when unlocking the phone is to reset the brightness to mid-way, over-riding the profile setting. Autobrightness is off.
During daylight hours this is not so noticeable but at night when the phone is unlocked it switches to mid-brightness despite the profile settings for minimum brightness. A tap of the profile widget restores it to dim, but each time we grab the phone it's very bright for night use.
I've looked through all the phone display settings and can't see any reason why the phone should revert to mid-brightness after unlocking when Autobrightness and Eye Comfort are off.
Developer of EasyProfiles has abandoned the app years ago so no actions possible on that front.
Can anyone confirm this behaviour ... turn off Autobrightness, set brightness to low, lock the screen, unlock, check brightness level?
CLT-L29, 8.1.0.130(C363)
Update ... been liaising with Huawei support, they suggested B150 would fix this. Update B152 was installed but did not help.
Further testing suggests the problem is the lockscreen always uses Automatic Brightness irrespective of the user settings. To test this I set the phone to a daytime profile, locked the phone, then went into a dark room. When I woke the phone the screen began to dim and when I unlocked the phone the brightness was very low.
Similarly, I chose the night profile and went into a lit room, the lockscreen brightened and unlocking forced the brightness higher.
Sounds like they're going to escalate this, assuming they can replicate the issue.
Anyone know how to brighten up the Always-on clock? Mine is almost too dim to make out.
I've tried fiddling with all the setting (Display and Battery) and once got it to be brighter for a short time, but after a restart it's too dim again, and fiddling with all the settings makes no difference.
I see that other have this problem too.
I have the same problem too! The AOD auto dim itself to low brightness and many times almost cannot see anything especially during the day. In the end, I just turn it off as it doesnt makes much difference turning it on.
Seems like there is no way to adjust it not to auto dim itself.
Screen stays dim after waking from screen timeout
Auto brightnes is off, brightness is at 100%, color is set to standard,
after screen timeout screen dims and when touching it to keep phone awake it does not go to 100% brigtness even though the brightness bar is still at 100%, and then i have to slide the brightness bar to lower it and back to full.
It is very annoying having too do that every time i tocuh the screen trying to keep phone awake.
One solution would be to set screen timeout longer, but then i would have to remember to lock the phone every time...
Another would be to keep it at auto brigthness which is fine in direct sunlight but sucks as soon as the sensor is in the shade
It is latest stock firmware on rooted/unlocked phone
Did you replace your display?
Display brightness works correctly only on android 9miui10.3.5. So fastboot flash it, then check display brightness, then upgrade to whichever rom you want and check if it still works well(some weird hardware sensor issues in miui software updates)
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