Why my screen has a grey "layer" when I turn a video full screen?

[fetomy]

So I absolutely can't find this anywhere...
Since the last update to the new Android whenever I watch a video and turn my phone sideways so it rotates and goes full screen a grey layer goes over the video so it becomes kinda blurry colors becoming weaker like if a thin filter would've been there. When the phone is "standing" everything is good it happens only when rotated. I can actually see it appearing as it has a second delay. It happens only with videos but that in every application.

I can't post an answer here... Anyway my phone is Huawei mate9 with the latest emui and Android. Although I have a friend with the same phone also updated but not having the issue.

 

[B. Diddy]

Welcome to Android Central! Which phone? I recall another similar post about something like this, but not sure if there was a good explanation.

 

[fetomy]

Hey! Thanks for answering!
It's a Huawei mate9 with the latest emui and Android.
But I have a friend with the same phone, same versions not having the problem.

 

[B. Diddy]

Does it also happen in Safe Mode? https://www.androidauthority.com/problems-huawei-mate-9-fix-738776/

 

[fetomy]

I can't put it in safe mode. I do what they say, restart it, holding down the volume down button but it just starts regularly.

 

[fetomy]

Okay I pushed too soon.
Hard to say without YouTube because the built in player only would play in full screen so I can't actually see it appearing but I'm almost 100% sure it does not happen in safe mode.

 

[B. Diddy]

I found the other thread -- one of the users also has a Mate 9, so it sounds like you're not alone: https://forums.androidcentral.com/a...-play-video-full-screen-mode.html#post6144799. That person also found that the problem went away in Safe Mode, so I suggested uninstalling apps one by one to see if the problem goes away. Haven't gotten a response yet, though.

 

[Trigati]

I'd start by checking if any apps have permission to draw over other apps, if so turn those off, and see if it goes away.

 

[fetomy]

I'd start by checking if any apps have permission to draw over other apps, if so turn those off, and see if it goes away.

How can I see which app can draw over others?

 

[B. Diddy]

That would be the Screen Overlay feature: https://www.howtogeek.com/271519/how-to-fix-the-screen-overlay-detected-error-on-android/

 

[fetomy]

That would be the Screen Overlay feature: https://www.howtogeek.com/271519/how-to-fix-the-screen-overlay-detected-error-on-android/

It was way too hard to find but I turned off all apart from "system UI" which was greyed out. BTW all were yes.
Although it did not help. Guess I'll start deleting the apps.. I just have zero idea what should I look for...

 

[fetomy]

Well I deleted all apps that's not on my phone since the beginning, and it's still there... Unbelievable.. Guess I'll just stop watching videos...

 

[B. Diddy]

Since you've already deleted all of your apps, you might as well try a factory reset (after backing up your important data, of course).

 

[fetomy]

Cool so I did that. Of course I forgot to save my contacts and notes so now I lost all of it. But I don't care.
What I care about is that it's still f.... happening.

So I thought I make a screen recording to show how it looks and boom it does not happening when I'm recording a screen video...

I'm gonna have a stroke...

 

[B. Diddy]

Can you take a video of the phone's screen using another device's camera?

 

[fetomy]

Can you take a video of the phone's screen using another device's camera?

sorry took too long. fortunately így someone write meg on Messenger during full screen video and I tap on their avatar, the layer disappears
https://drive.google.com/file/d/1oJKboA5UyqDTcM_JJk1_1NxAIGIbFNwK/view?usp=drivesdk

plus an image: https://i.imgur.com/tdg8HLw.jpg
here you can see on the little thumbnails the difference between the 2 images

 

[B. Diddy]

Hmm, really not sure what's going on there. Have you already tried other video players, like MX Player?

 

[fetomy]

it doesn't matter which player I use it happens with every video. the one on the video I shared is YouTube , but it's the same on VLC, mx, bs, and the built-in Huawei stuff.

 

[B. Diddy]

Argh. Is this with streaming video only, or also with locally saved video?

Did you happen to disable Chrome? If so, make sure Android System Webview is enabled and updated in Settings>Apps​.

 

[fetomy]

it does it with any kind of online video and with any kind of locally saved videos. maybe not with videos recorded by the phone but not 100% sure because it is automatically fullscreen so I can't really check.

I thing is weird though...if I'm recording my screen as a video and I start watching a YouTube video this "layer" does not appear at all. I mean I'm doing a screen recording with the same phone ,like a screenshot but video.

chrome is enabled.im using that as my browser.this webview stuff I found in the play store with an "enable" button but that does not do anything.