https://bugs.kde.org/show_bug.cgi?id=384660
Bug ID: 384660
Summary: Parto of the screen(s) "often" flickers when showing
windows
Product: kwin
Version: 5.10.3
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: glx
Assignee: kwin-bugs-n...@kde.org
Reporter: kokok...@gmail.com
Target Milestone: ---
Created attachment 107832
--> https://bugs.kde.org/attachment.cgi?id=107832&action=edit
qdbus org.kde.KWin /KWin supportInformation
Hi, i've had this problem since i start using kwin 5; while in the past i
thought it was due to a bug in the nvidia proprietary driver, i'm experiencing
the same with modesettings+mesa on an haswell chip (i915 driver).
What happens is that when i open a new window, part of the screen starts
flickering, see:
https://www.youtube.com/watch?v=mHPuyiEn0VA&feature=em-upload_owner
https://youtu.be/AO0VTQu0bFU
Without success, i tried to:
* Change decoration style
* Switch between various opengl modes
* Switch between various tearing prevention modes or turn it off completely
* Disabling effects
* disable/re-enable compositing via alt+shift+f12
Workarounds that works temporally (the problem reappears soon or later)
* switch to xrender
* switch off compositing
* kwin_x11 --replace
I use a dual-head setup.
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