https://bugs.kde.org/show_bug.cgi?id=438176
Bug ID: 438176
Summary: Extremely choppy screen with multi-monitor setup
Product: kwin
Version: 5.21.5
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: oto.st...@gmail.com
Target Milestone: ---
Created attachment 139041
--> https://bugs.kde.org/attachment.cgi?id=139041&action=edit
Output of glxinfo
I have a multi-monitor setup, with a 1080p laptop screen and a 1440p monitor.
When I set my screens in the settings so that the laptop screen is to the
bottom-left of the larger monitor (as is the case physically), the whole
session becomes extremely choppy (about 1 FPS or less). Turning off the laptop
screen (by closing the lid) often resolves the issue temporarily and everything
looks normal even after turning the laptop screen back on. However, any screen
resolution changes while both screens are on reintroduce the issue.
This problem only seems to occur when there is no screen positioned at the 0,0
co-ordinates in the screen configuration. When I place the laptop screen to the
top-left of the larger monitor, everything is fine, as well as when the laptop
screen is to the right of the larger monitor. It also only occurs when the
Rendering backend is set to OpenGL (any version), and only in X11. Wayland does
not seem to be affected.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
--
You are receiving this mail because:
You are watching all bug changes.
