[Solved] Screen blinking after updating system

mig4ng · 2017-10-01 23:19:39

Hey, after I updated my system using pacman -Syu my laptop started acting weird in some situations.
If switch workspace or simple use Alt+Tab and holding Alt, to let the floating thumbnails of the applications stay in screen, makes the screen blink as shown in the video.
https://photos.app.goo.gl/0ZfbrBzmBFrlA3Au2
It stops blinking after moving the mouse or switching workspace/application.
I am using gnome and using only intel video drivers and the laptop is a xiaomi air 13.
I also tried to search multiple wiki pages, the forums and recent announcements for similar problems.

Any suggestions?

Last edited by mig4ng (2017-10-08 23:56:23)

seth · 2017-10-02 11:37:27

Is this *only* on keyboard interaction?

mig4ng · 2017-10-02 14:28:15

seth wrote:

Is this *only* on keyboard interaction?

I cannot reproduce the blinking when I want so I cannot confirm if it is only with keyboard interactions, but I think it isn't, I'll be paying attention to see if the same bug happens without keyboard interactions.

seth · 2017-10-02 14:39:10

The idea is that stry 0x0 key events get in the line and cause funny reactions (afaics from the video, it seems to "blink" by lightening up?)
https://bbs.archlinux.org/viewtopic.php … 0#p1739030

mig4ng · 2017-10-02 14:43:08

I found a way to trigger another bug that is most likely related to the other bug.
When in visual studio, with a twitch live or youtube video running in the background, if I toogle terminal and hover it the screen blinks in some spots. Without the stream or video running it sometimes happens too but less frequently.
Video: https://youtu.be/dMXW9YyPJsg

Edit:
Tried this https://bbs.archlinux.org/viewtopic.php … 0#p1739030 and the vscode bug persists, the other I did not experience yet, if I experience it I will post an update

2nd Edit:
The screen blinking shown in the first video still happens.

Last edited by mig4ng (2017-10-02 15:31:40)

seth · 2017-10-02 18:19:11

Tried whether it happens on gnome on xorg as well?

papavlos · 2017-10-03 08:05:31

Did you ever meet the "tearing" issue? See https://wiki.archlinux.org/index.php/in … free_video

mig4ng · 2017-10-03 13:29:54

seth wrote:

Tried whether it happens on gnome on xorg as well?

not yet, will try later today

papavlos wrote:

Did you ever meet the "tearing" issue? See https://wiki.archlinux.org/index.php/in … free_video

yes I do experience tearing when testing this video https://www.youtube.com/watch?v=0RvIbVmCOxg on firefox, yet on chrome I do not get the tearing effect
I tried the tear free option and tried disabling vsync but the video in firefox stills shows tearing

papavlos · 2017-10-03 15:04:12

Well... the tearing problem appears here and there, years go by and it seems to be undefeated... There are many posts concerning this, no single and universal solution....

Try for instance:

changing the driver: https://bbs.archlinux.org/viewtopic.php?id=230490

compton: https://bbs.archlinux.org/viewtopic.php?id=217354

Happy googlin'...

mig4ng · 2017-10-08 23:55:34

I think I finally got it.
I was experiencing tearing on openbox dragging windows as shown here: https://photos.app.goo.gl/s4pAgDvg4ZLG56r92
And that was fixed using this config file

/etc/X11/xorg.conf.d/20-intel.conf           
------------------------------------------------
Section "Device"
  Identifier  "Intel Graphics"
  Driver      "intel"
  Option      "AccelMethod" "sna"
  Option      "SwapbuffersWait" "true"
  Option      "TearFree"     "true"
EndSection

Yet I still got tearing while watching videos on firefox
I fixed this setting the layers.acceleration.force-enabled to true in Firefox about:config

I am still not 100% sure this fixed all tearing issues but so far I have not seen it occurring again, so until then this is Solved.
Thanks you all for the help!

Last edited by mig4ng (2017-10-09 00:02:31)

Arch Linux

#1 2017-10-01 23:19:39

[Solved] Screen blinking after updating system

#2 2017-10-02 11:37:27

Re: [Solved] Screen blinking after updating system

#3 2017-10-02 14:28:15

Re: [Solved] Screen blinking after updating system

#4 2017-10-02 14:39:10

Re: [Solved] Screen blinking after updating system

#5 2017-10-02 14:43:08

Re: [Solved] Screen blinking after updating system

#6 2017-10-02 18:19:11

Re: [Solved] Screen blinking after updating system

#7 2017-10-03 08:05:31

Re: [Solved] Screen blinking after updating system

#8 2017-10-03 13:29:54

Re: [Solved] Screen blinking after updating system

#9 2017-10-03 15:04:12

Re: [Solved] Screen blinking after updating system

#10 2017-10-08 23:55:34

Re: [Solved] Screen blinking after updating system

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