Huawei Nexus 6P :: Screen Flicker (PWM) Backlight Dimming
Oct 27, 2015
My eyes are kind of damaged and I need to know if the Nexus 6P phone screen uses PWM for backlight dimming. Majority of people never notice it but I'd say 5% of people have issues caused by it (headache, migraines, seizures, etc.) Kind of like the CRT flicker but in modern LED backlit devices.
To test use a high end camera/DSLR with adjustable shutter speed and look for black lines on the phone screen when adjusting the camera's shutter speed.
Info about PWM: [URL] ....
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Jan 24, 2010
I just updated to 442 and everything else seems fine except for the fact that when on a call, as soon as the backlight times out, it mutes the mic and the party on the other end cannot hear me. Clicking the trackball "unmutes" the phone until the backlight times out again. This happens whether I'm on speakerphone or not.
I posted this in the actual OS thread as well but figured someone in here may read this and know of a solution.
I've done quite a few battery pulls hoping this would resolve the issue but it hasn't.
The nice thing about upgrading from 296 to this is when you are on a call and the backlight times out, the screen and everything but the 4 buttons on the trackpad row go dim. So if its dark you can still find these 4 buttons rather easily. I just wish I could figure out this mute issue.
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Mar 20, 2014
My screen is always at max brightness but sometimes, like once or twice a week, i see it "bounce" slightly to a "just a bit" brighter level. it happens only once, so it's not "flickering" but given it's set at max brightness i wonder why this is happening?
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May 27, 2014
Yesterday, I dropped my nexus 5 and now my screen won't display anything any more. But the backlight works and so does phone (i know the phone still works because my alarms still are going of) What do you (people on the forum) think is wrong with my phone. Do i need a whole new display and touchscreen or is there just a wire that needs to be reconected?
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Oct 14, 2015
I purchased Huawei Nexus 6P phone 1 week before and i want to print screen like samsung note-II phone but i am not able. I have to send print screen for my web hosting site.
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Sep 29, 2011
Is there any way to prevent the screen from automatically dimming ? When checking email or waiting for a connection , I have to keep pressing the button to keep the screen active. I have the latest available update installed
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Dec 20, 2015
So, my nexus 6p screen toggles on once every minute or so while charging and i can't figure out what caused it. This is without input from the user. i'm running stock rom 6.0.1 with elementalx 1.02, rooted with double tap 2 wake enabled.
The timing which it toggles on are : 19:31 19:31 19:33 19:34 19:34
[URL] ...
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Nov 4, 2015
I have the setting checked but its not detecting the voice command.
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Oct 29, 2015
I have set up "OK Google" to recognize my voice from screen off.
This works great, however, when I use it, it requires me to enter my PIN/fingerprint to show the results.
Is there any way to turn this off? I have to do that every time.
And as far as security reasons, the phone won't respond to anyone else, so it's not like someone would be able to "OK Google" and unlock my phone, unless they sound exactly like me.
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Dec 17, 2015
Trying to mirror my screen to my raspberry pi (openelec) running kodi. What app used to mirror your phones screen to your Android boxes?
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Nov 9, 2015
I use the daydream feature as a bedside clock. I plug it in, daydream clock comes on and all is good. When I wake up in the middle of the night the screen is off. How to override?
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Jan 16, 2016
I've got my nexus 6p two weeks ago. In the last week i've noticed that the phone is always awake, even with screen off. In the first days of use doze was working well and i didn't have problems. It doesn't seem to be regular.
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Feb 6, 2016
I have noticed the screen not turning on occasionally when phone is unlocked. This only seems to happen in the car when connected to BT, and phone is set in the holder. I can still make a call via car's BT dialer, but even then the screen wont come on.
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Dec 16, 2015
I came from a Nexus 5 and had to always leave my screen brightness on about 1/3 in order to preserve battery. After playing with my 6P for over a month, I feel like the battery can handle a brighter setting (with my usage). But, I have concerns about burn-in if I put the setting too high since this is an AMOLED panel. What brightness settings are you using and have you had any issues with burn-in?
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Dec 3, 2015
My phone has pink screen, it's even but I want to tweak the colors and make it more accurate (or at least for my own like) ... I'm rooted, any good apps for this out there? I want to keep stock kernel if possible ...
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Nov 4, 2015
Just got the Nexus 6P , after years with Samsung note series... I was wondering , is there anyway in Nexus 6P to do screen mirroring over the wifi ? without any dongle?
I tried the Cast option , but it did not recognize my Sony tv which is connected to the same WIFI network, while the Samsung note had that "screen mirroring" option built in, is there anything equivalent in the Nexus?
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Nov 17, 2015
I notice this while trying to put it on my desk or one hand typing texts, it seems the auto rotate sensitivity is too high. Is there some way to "turn it down" so you can turn the phone more before it auto rotates? I know I can turn it off, but I use it in Chrome and YouTube and probably couple more apps.
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Nov 24, 2015
I've been running Android M preview (3?) for a while on my Nexus 6.2 months ago my USB-connector of the phone broke and only because I also have a wireless charger I can continue to use my phone.Just now I tried a headphone and noticed that viper4android wasn't working, which it did a while ago.I still had the file viper_aio_fixes.zip in my download folder I used to get it going a long time ago. [URL]..
I booted into recovery, flashed that zip and did a reboot.Now it is stuck at the black screen with only the text "Google" and a padlock.I am able to boot into fastboot where I can go in the several modes including recovery mode (Team Win Recovery Project v2.8.5.0). I don't have any possibility to connect it to my computer using an USB. The device does still have warranty, but I can't miss my phone.
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Nov 25, 2015
I have a couple of questions about this.
1) With Ambient display enabled, the screen pops on when a notification comes through, or when I pick up the device. If Ambient display is disabled, the screen doesn't wake for either circumstance.
- The way I would like to have it, is where the screen only comes on when a notification comes through, and not when I move the phone. For me, it's a bit annoying most times. Is there a setting or another way to achieve this?
2) When Ambient display is enabled and I get the sound or vibration for a notification, it takes a few seconds (3-5) for the screen to come on.
- Is this normal? I'd prefer it to come on right after the notification sound/vibration.
I'm currently on build MDA89D, and have fingerprint/pin set for lock screen security.
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Nov 2, 2015
Okay, so there is no screen protector or anything. Not rooted or unlocked or tampered in any way. I've had the phone for 26 hours and then the following happened:
EDIT: YouTube video added [URL] ..
I pulled the phone out of my pocket to unlock it. I see the lock screen and put in my pin (yes, I see the actual screen and stuff on it. Let me make that clear.) after I enter my pin successfully the screen locks itself. I contacted Google support and they said to factory reset it. I did the full factory data reset in the recovery mode (again, the screen works. I can see everything to do a FDR and I can see the boot animation) and it starts to boot up. Once I see the "welcome" screen it instantly locks itself.
I can hear the audible "latch" locking sound that it makes when you press the power button. I know the buttons are not malfunctioning because they work perfectly fine in bootloader / recovery mode to scroll up and down and select things. I've tried multiple things but nothing seems to work. The problem here is that I want to try and do a factory image but my computer will NOT recognize my Nexus 6P when in recovery mode / bootloader mode. I have all the drivers installed but since I can't access the OS and enable OEM UNLOCKING there is no way to factory flash a factory image is there? Again, I can NOT access the OS at all whatsoever.
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Feb 6, 2016
There is no toggle to enable cast on the stock rom, but on the custom roms there is. I want to remain on stock but I also want the screen casting to television to work. How to enable it in the stock rom?
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Feb 18, 2016
Last night I was getting annoyed by some screen flickering in Chrome. I was trying to pinpoint the issue, but it is not that easy. For now it only happens in chrome under these conditions:
Landscape orientation
Using Swiftkey flow input
Chrome tries to fill in something you already searched for
Sometimes I have to delete and restart typing in the keywords in order for the issue to appear.
It kinda happens when the omni-box gets auto-filled when trying to flow type on the swiftkey keyboard, the right portion of the screen will start to flicker like it is some sort of VRAM corruption.
This doesn't happen with stock google keyboard. Is it possible that hardware is still ok, can an app under certain circumstances do that? I only received my 6p a week ago.
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Nov 2, 2014
Since I downloaded 5.0.2, the photos I set as lock screen wallpapers become dim. Basically, my lock screen shows the time clearly, but the wallpaper is dark. I tried boosting the brightness of the photo, but it looks bad...
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Oct 2, 2015
Is there any way to stop my phone from dimming all the time. If I am gaming or on the phone a while it goes from 100% brightness to like 70. I do not use auto brightness as I do not like it. I like the screen to be as bright as can be.
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Oct 4, 2015
when I turn on the screen on my g3 after a few seconds the screen dims ever so slightly and is noticeable , the percentage on the brightness scale stays at the 75% tho , its set to 75% all the time , not using auto brightness , unrooted using Nova launcher .
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Jul 13, 2010
My N95 has developed an annoying screen flickering problem. Every now and then the entire screen will flash white then come back. It seems to happen randomly and I can't think what would be causing it.
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Dec 5, 2015
So I have verizon and I'm using a nexus 6p. My phone died and I charged it and booted it back up.Problem was is I forgot my password. So since I'm rooted i went into twrp and tried my password there. it worked there but not on regular boot up. So i went into wipe and wiped everything. now when i go to reboot my phone it is stuck on the google logo.
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Dec 1, 2015
I know this is not possible on the N6 and curious if you can on the 6P.
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Nov 10, 2015
If I make a call as soon as I press to dial the screen goes black and I can't reactivate it unless the person in the other end hangs up, so if it goes to voice mail I have to restart my device, if the person hangs up I have to double tap the power button to wake it up but that activates the camera, that's the only way I'm able to do it.
Fully stock and up to date firmware
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Nov 9, 2015
Do your Nexus 6P screen go black during a call. Mine does on every call. My display settings is set for 1-minute. I call Huawei support. The lady says that the screen is suppose to go and stay off during a call. Never heard of that from a phone. You cannot respond or do anything during the call.
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Dec 7, 2015
I've followed instructions in from this thread [URL] .... and flashed the supersu from the recovery without reading not to flash. Now I'm stuck at the google splash screen. How to recover from this?
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