I have had my z3 for a couple months now. Yesterday the screen dimmed down significantly and will not brighten back up no matter what I do. I have turned of "Auto Adjust" and all that. I have manually increased the screen brightness to maximum and it does not thing. The current brightness is good enough for indoor use in a area with not much light, but in a bright room or outside I can barely tell what is on the screen. I have powered the phone off and restarted it several times. It's like it is stuck in some kind of battery saving mode that it won't come out of. I made sure that all battery saving modes are turned off. Nothing effects the screen brightness no matter what I do. Please help!
jungleexplorer said:
I have had my z3 for a couple months now. Yesterday the screen dimmed down significantly and will not brighten back up no matter what I do. I have turned of "Auto Adjust" and all that. I have manually increased the screen brightness to maximum and it does not thing. The current brightness is good enough for indoor use in a area with not much light, but in a bright room or outside I can barely tell what is on the screen. I have powered the phone off and restarted it several times. It's like it is stuck in some kind of battery saving mode that it won't come out of. I made sure that all battery saving modes are turned off. Nothing effects the screen brightness no matter what I do. Please help!
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Does it happen in safe mode? (Long press power button, long press "power off" text, ok). If it doesn't, some app is responsible. Last resort would be to do a factory reset.
Related
The sleep option in the power menu, is it any different than taping the power button to to turn of the screen? (or letting the screen time out)
Sleep mode on a computer is a true low power state, does Android support this? I know that when the screen is off on my N1 that the OS is still running, because it has to for proper function as a phone. Now the Gtab does not need to keep running when you shut off the screen, so a true sleep mode would be great.
I have selected the sleep mode before, and to me it did not seem to take any long to "wake up" when I tapped the power button.
I think that if it is a true sleep mode, then it would be nice if we had options like a standard computer. Set the screen time out and then a separate time to enter sleep mode automatically when there is no user activity. Have it function like that when you tap the power button as well, auto sleep mode after 5 minutes or so.
It's the same as tapping the power button. Try to charge the battery full, and put it to sleep mode overnight. Do the same thing for tapping the power button. I've done this and next morning the battery is still at 100 percent full.
The battery indicator is slow to refresh upon waking back up I noticed, I guess experimenting could show if there is any real difference. Still , I would like to know from a deeper perspective, If the source is ever released someone with more knowledge than me could examine the code.
I too was wondering about the affect of sleep vs auto timeout on battery life, so I put my TnT Lite 2.0.0 to test:
(1) with sleep: after 12 hours the battery meter drops by 17% (I actually did this twice and got basically the same result)
(2) with auto-time out: after 8 hours the battery meter drops by 12%
So it seems that sleep and auto-timeout have the same affect on battery.
I am surprised to hear in post #2 that there was no change in battery life; after all, the CPU still runs, albeit at a lower clock. I do notice that when the unit comes back on -- from sleep or auto-timeout -- it takes a few seconds before the battery meter updates itself. Maybe that's the reason why in post #2 it looks as if there's not change at all?
In any case, I can live with dropping 17% over 12 hours, esp since wifi reconnects within seconds. The more I use the g-tab the more I'm amazed how well-built it is as a piece of hardware, and how much it was weight down by the stock TnT... Thanks to roebeet/rothnic/bekriebel et al for making this useable (and fun!).
I do not think the CPU runs on a lower clock when the screen is off, that is why SetCPU has the option have a profile to lower the clock with the screen off.
If we can get SetCPU to work correctly, this thing would hardly use any battery if set to minimum clock speeds.
So it seems that my phone backlight stays on at random times after pressing the power button to turn screen off. I don't notice it in the day because the background is black, but i've noticed while using my phone at night that the back light stays on. I can't recreate the issue, it just happens at random times. Doesn't matter what ROM i use, it still did it with all roms. Does anyone else get this problem? The reason i say problem is because it drains the battery quickly when the backlight is on. It can go from 60% to Dead in less than an hour.
Currently running stock rooted 2.3.6
Screen is at lowest brightness
I Always press the power button to turn off screen when i'm done using it
I have screen timeout set to the lowest (15 seconds)
Any ideas?
I had this happen once when testing out chainfire3d. Restored a cwm backup and haven't seen it since.
got same problem once
When i had this prob, i was running RootDim @ background, so make sure u are not running any LCD brightness modifiers at the moment.
Maybe its normal but I have smart stay on so if i am looking at the screen it dims but doesn't turn off. This happens even with auto brightness, power saving and auto adjust screen tone turned off. the browser also has auto brightness turned off. the only thing i can think is maybe there is a conflict with quick settings which also has auto brightness turned off. if i am not looking nat eh screen it dims and in a few seconds shuts off.
what mine does...
Same here. I even start blinking and moving my eyes to see if it will stay on. I know I've got to look like an idiot.
Currently not being productive on my S3.
I have been playing with smart stay as well, but I haven't seen that it keeps the screen on any longer ... maybe I just haven't had enough patience.
smart stay does keep my screen on but it does not prevent the screen from dimming. I think the phone automatically dims right before its about to shut off even if i have all dimming settings turned off. right before it shuts off smart stay keeps it on but only after the screen dims thus i am stuck with a dim screen.
I noticed that if i leave the screen on (with gravitybox) for a mid-long period, e.g. 30/60 min, the display will start flickering (or jumping) and the oscillation will increase with time. The only solution is to turn off the phone and let it rest for some time then power it on. Do you know why?
Arathon said:
I noticed that if i leave the screen on (with gravitybox) for a mid-long period, e.g. 30/60 min, the display will start flickering (or jumping) and the oscillation will increase with time. The only solution is to turn off the phone and let it rest for some time then power it on. Do you know why?
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I am not sure if mine is related, but today my Nexus 5's screen flickered then went black. I can feel the phone vibrate when holding the power button down. But still nothing, tried plugging into computer and after unplugging I hear the low power chime. So I know that it is working aside from the screen staying black.
The phone is running 4.4.3 stock that I flashed via twrp, with faux123 18u kernel, exposed installer, gravity box. This could all be coincidence, and I could just have a bad screen. But does anyone have any suggestions?
I don't know what it is but my Z3 is getting dimmed a little bit after I swipe to unlock. When I press the power button, the screen turns on with a bright wallpaper, after I swipe to unlock, the screen dims like 5% brightness immediately, but in some cases several seconds later. Because the lock screen is the same as my wallpaper, this issue is very obvious. I have turned off auto brightness.
This is not so bothersome to me but it's strange? Any ideas?
reallycool said:
I don't know what it is but my Z3 is getting dimmed a little bit after I swipe to unlock. When I press the power button, the screen turns on with a bright wallpaper, after I swipe to unlock, the screen dims like 5% brightness immediately, but in some cases several seconds later. Because the lock screen is the same as my wallpaper, this issue is very obvious. I have turned off auto brightness.
This is not so bothersome to me but it's strange? Any ideas?
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Doesn't do that on mine. Do you have any power saving features on ?
Aside from auto brightness I can't guess what would do this.