Screen flicker when waking phone - Google Pixel 3 Guides, News, & Discussion

I've notice my screen flicker when waking my phone. It only does it when ambient display is set to always on. I've been able to reproduce it by unlocking the phone then pressing the power button to turn the screen off. As soon as the ambient display comes on press the power button again and the screen flickers just before it comes on.
Has anyone else got this problem?
Check the video in the link showing the issue.
https://youtu.be/WWuTusSMIGg
Sent from my Pixel 3 using Tapatalk

I have it but not as bad. For me its like very thin white almost like static lines once AOD is enabled and I turn on the phone either by the power button or the fingerprint. Once I turn off the AOD then it all goes away. It is something with the AOD but I am sure Google will say it is a feature and not a bug. Thats if they even acknowledge it.

Duplicate Thread
This is being discussed at length here:
https://forum.xda-developers.com/pixel-3/help/pixel-3-screen-flash-t3859441/page3

Related

Screen quickly turns off

For some reason my screen quickly turns itself off when I awake it from stand by. It's like 3 or 4 seconds and then the screen will turn off, I can normally get around it by quickly pressing a button and this will keep the screen on.
It's also not a constant problem, after a soft reset the problem seems to go away for a random period of time and then return.
Any one else experience similar?
aLlamaWithARifle said:
For some reason my screen quickly turns itself off when I awake it from stand by. It's like 3 or 4 seconds and then the screen will turn off, I can normally get around it by quickly pressing a button and this will keep the screen on.
It's also not a constant problem, after a soft reset the problem seems to go away for a random period of time and then return.
Any one else experience similar?
Click to expand...
Click to collapse
Just go to Sound and Display --> Backlight --> Set it for longer.
gaarry said:
Just go to Sound and Display --> Backlight --> Set it for longer.
Click to expand...
Click to collapse
That doesn't work mainly cause there isn't an option to turn the backlight off after 3 seconds
sorry, wrong tab selected
pls delete.

[Q] How to turn on screen by touching it? (while it isn't locked yet)

Hello, I come from a Nokia 5800 and this behavior was common in CFWs, but I can't find anything similar on android yet.
What I mean is, android's behavior is something like this:
- 30 seconds go by and the screen dims.
- 5 seconds more and screen turns off.
- 2 seconds more and lockscreen kicks in.
- If you want to use the phone now, you must press power or home button.
In Nokia 5800, it was something like this, and what I'm looking on android:
- 30 seconds go by and screen dims.
- 5 seconds more and screen turns off.
- xx seconds more and lockscreen kicks in. Also (this is the important part!) if you tap the screen at this point while the screen is off, it turns on back again! Kinda like when its dim and you touch it and it lights up again. Same behavior but with screen off!
My question is, Is there some way to replicate this behavior on android?
Thanks.

Strange screen behavior

Hello,
Yesterday I have unlocked my phone with my finger print (like I always do) and it took about 5-6 seconds for the screen to show something. The backlight turned on rather quickly but the screen remained black. After the screen turned on, it had a bad case of screen retention, the colors were also darker and I could not use the buttons from the bottom of the screen. A reboot solved all this problems.
Also, sometimes when I turn on the screen, it quickly goes dark and the slowly comes back to the initial state. During this time I cannot use the touch screen. It is like it does the wake up of the screen all over again.
I think this is a software issue (I have V20C on H850) and it might be related to the always on display. Also, all of these problems happened when I woke my phone using only the finger print (not pressing the button or knocking on the screen).
Did anything like this happen to you?

LG V30 always on display and KnockON features in low light don't work

Hello,
I'm experiencing a weird problem with my LG V30 H930 and I was wondering what could be the solution, if anyone has ever experienced that as well?
Yesterday I received a new LG V30 phone and that day I found something very disturbing. The "always on display" function does not work when it's too dark in the environment or when I cover the light sensor. This also results in:
- "double tap to wake" function does not work when it is too dark
- holding finger against the screen results in turning off display instead of entering options for changing wallpaper, adding widgets and settings. Additionally when I turn off the screen in this way, I need to press the button on the back of the phone twice, which is also a fingerprint reader and at the right time. If I do it too slowly, i.e. press the button once, wait a bit and then the second time, the screen will not turn on. I have to press it twice and relatively quickly
All of this does not happen when it is bright in the environment.
The phone's never been rooted, there is no custom firmware loaded on it, I've tried many times going back to factory settings.
Lovatnet said:
Hello,
I'm experiencing a weird problem with my LG V30 H930 and I was wondering what could be the solution, if anyone has ever experienced that as well?
Yesterday I received a new LG V30 phone and that day I found something very disturbing. The "always on display" function does not work when it's too dark in the environment or when I cover the light sensor. This also results in:
- "double tap to wake" function does not work when it is too dark
- holding finger against the screen results in turning off display instead of entering options for changing wallpaper, adding widgets and settings. Additionally when I turn off the screen in this way, I need to press the button on the back of the phone twice, which is also a fingerprint reader and at the right time. If I do it too slowly, i.e. press the button once, wait a bit and then the second time, the screen will not turn on. I have to press it twice and relatively quickly
All of this does not happen when it is bright in the environment.
The phone's never been rooted, there is no custom firmware loaded on it, I've tried many times going back to factory settings.
Click to expand...
Click to collapse
Why are you covering the light sensor if you want the AOD on?
You are basically replicating a flip case cover or flipping a phone over on the desk. Of course the AOD will turn off under those circumstances. There's nothing wrong with your phone.
With your display on, just quickly press your finger on the fingerprint sensor to display lock the phone and you will see AOD. Well you also have need the "power key instantly locks" option turned on. But I assume you have that on already.
Of course the AOD works in a dark environment. But in this instance, you are covering the light sensor -- which tells the phone you must have it in a flip cover case or flipped over. When you open the case or flip the phone back on, the AOD comes back on. In your fake way, you must be doing something wrong.
Stop covering the light sensor.
ChazzMatt said:
Why are you covering the light sensor if you want the AOD on?
You are replicating a flip case cover or flipping a phone over on the desk. Of course the AOD will turn off under those circumstances. There's nothing wrong with your phone.
Just quickly press your finger on the fingerprint sensor to display lock the phone and you will see AOD. Well you also have need the "power key instantly locks" option turned on. But I assume you have that on already.
Click to expand...
Click to collapse
I understand your logic, but it is a very weird feature then, not to be able to change wallpaper directly from the home screen, when it is dark in the room or not to be able to turn on the phone double-tapping the screen, which is turned off. Is it perfectly normal as well?
Lovatnet said:
I understand your logic, but it is a very weird feature then, not to be able to change wallpaper directly from the home screen, when it is dark in the room or not to be able to turn on the phone double-tapping the screen, which is turned off. Is it perfectly normal as well?
Click to expand...
Click to collapse
You can change wallpaper and double tap the screen, but go to AOD mode in a NORMAL way. I told you how. Just turn off the display with the fingerprint sensor. AOD. Double tap, display back on.
ChazzMatt said:
You can change wallpaper and double tap the screen, but go to AOD mode in a NORMAL way. I told you how. Just lock the display.
Click to expand...
Click to collapse
Thank you for your time!

Amazfit T-Rex -- Is the screen suppose to light-up on touch?

Hi,
I have this issue with my watch: sometimes I can light-up the watch by touching the display and most of the times this doesn't work. Is this a feature (when it works) or a bug (when doesn't work)?
Thank you!
Just few seconds after your screen goes off, it would get back on by tapping on screen. In other cases you couldn’t make it on by tapping.
I just hop on this thread about screen light.
I trying to find the setting to turn off the screen while on running activity. I notice the screen is light on entire running activity until complete. I had already enable wrist lift option to turn on the screen when i need checking the running stats.
Anyway find the setting to turn it off or perhaps sleep mode. Thank you in advance.
There is no such option in Zepp yet. Hopefully they will add it, since screen-on is very battery-consuming.
casper709394 said:
I just hop on this thread about screen light.
I trying to find the setting to turn off the screen while on running activity. I notice the screen is light on entire running activity until complete. I had already enable wrist lift option to turn on the screen when i need checking the running stats.
Anyway find the setting to turn it off or perhaps sleep mode. Thank you in advance.
Click to expand...
Click to collapse
You can turn it off by going into workout settings.
If you disable light on lift, touch to light up display will be also disabled. At least it happens on mine.

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