https://bugs.kde.org/show_bug.cgi?id=513593
Bug ID: 513593
Summary: Mouse lag on Nvidia Optimus on Wayland
Classification: Plasma
Product: kwin
Version First 6.5.4
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: libinput
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
PROBLEM
- On Wayland, if you run any game on the dGPU, the mouse will experience severe
input lag.
CAUSE
- The mouse is still rendered by the iGPU, which is unaware that the dGPU is
running at maximum speed. So the iGPU stays at its lowest clocks.
TEST-CASE
1. Download: https://www.thedarkmod.com
2. Run it with: __GLX_VENDOR_LIBRARY_NAME="nvidia" ./thedarkmod.x64
3. Move the cursor around
SYSTEM
- Zenned OS
- Plasma 6.5.4
- Frameworks 6.21.0
- Qt 6.10.1
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