https://bugs.kde.org/show_bug.cgi?id=365799
Bug ID: 365799
Summary: Graphical corruption and display stops updating when
connecting external monitor through HDMI
Product: kwin
Version: 5.7.0
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: glx
Assignee: kwin-bugs-n...@kde.org
Reporter: commander.alch...@gmail.com
Laptop: Asus Zenbok UX32VD
I cannot remember when it started but it was sometimes after the Plasma 2 (I
think). When connecting an external display through HDMI the laptop screen
stops updating while the second monitor works fine.
Using Kwin_X11 --replace after connecting the second screen mostly fixes this
however sometimes after a while i get weird graphical corruption, like an old
TV monitor (CRT) from the 90's in horror movies that it flashes and weird
visual screen noise occurring. Drop-down terminal that just flashes and shows
partially.
Doing an kwin replace fixes this, switching to another backend from GLX to EGL
mitigates things ie, wont trigger the screen freeze on HDMI connection and also
does not have those graphical corruptions but it dooes not update/repaint
windows correctly all the time.
Reproducible: Always
Steps to Reproduce:
1. UX32VD ready
2. Connect something to HDMI
3. Laptop Screen freezes
Actual Results:
Screen stops updating on laptop, and or graphical corruption...
Expected Results:
working environment.
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