Bug 493657

SUMMARY

After updating to Plasma 6.2, I noticed that the cursor is laggy on the desktop and in the settings. After that, I opened Firefox, it was okay there. Opened Brave browser and cursor was laggy there as well (regardless if run in Wayland or X11 mode). I'm not sure what the pattern is.

This only happens if VRR is set to always.

Didn't have this issue on Plasma 6.1.

Happens both on main laptop and on external monitor (both run in 60+ fps).

STEPS TO REPRODUCE

1. Have VRR set to Always.
2. Open settings.
3. Move cursor.

OBSERVED RESULT

Cursor is laggy. Opened a fps online tester in Brave browser, it was actually running in 120 fps, only the cursor was laggy.


SOFTWARE/OS VERSIONS

Operating System: Fedora Linux 41
KDE Plasma Version: 6.1.90
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.2
Kernel Version: 6.11.0-63.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 22 × Intel® Core™ Ultra 9 185H
Memory: 30.7 GiB of RAM
Graphics Processor: Mesa Intel® Arc

ADDITIONAL INFORMATION

If I shake the cursor until it get's bigger, it's not laggy anymore, until it drops to normal size.