https://bugs.kde.org/show_bug.cgi?id=498223
Bug ID: 498223
Summary: X11 session mouse curosor extremly laggy and delayed
Classification: Plasma
Product: kwin
Version: 6.2.5
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-x11-standalone
Assignee: kwin-bugs-n...@kde.org
Reporter: wi11ia...@pm.me
Target Milestone: ---
Only in the X11 session the mouse cursor is extremely laggy and delayed (like
dragging it on a rope). This however stops as soon as some effect is running
that updates the forces the screen to be updated.
e.g. when running glxgears at monitor refresh rate in background the cursor is
normal. as soon as glx gear is stopped and only some static apps are running
that do not update the screen every vblank the cursor becomes very slow.
using the showFPS effect also forces the screen update and therefor fixes the
cursor but as soon as its deactivated the cursor is slow again.
Note: cursor is also slow when compositing is disabled (kwin_x11 suspend). only
X11 is affected, in wayland the cursor behaves normaly.
SOFTWARE/OS VERSIONS
Linux Kernel: 6.12.6
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.9.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
single dedicated AMD gpu, displayport connection to single monitor that does
not support "freesync" or other VRR.
--
You are receiving this mail because:
You are watching all bug changes.
