https://bugs.kde.org/show_bug.cgi?id=400791
Bug ID: 400791
Summary: Wrong reported refresh rate on 75hz monitor
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: tro...@free.fr
Target Milestone: ---
SUMMARY
On a Wayland session, I have a dual monitor setup : the laptop monitor is at
60hz and the external HDMI monitor is at 75hz. If I set the external monitor to
75hz in the Display KCM module, the OSD on my monitor reports 74.8 Hz which is
good. But any application on the desktop reports 60 hz. Now, I have read that
there were problems with XWayland reporting incorrect refresh rate values, but
even native Wayland applications (Falkon, Retroarch) report 60hz.
STEPS TO REPRODUCE
1. Use a dual monitor setup with one monitor at 75hz
2. Try to set 75hz on the monitor
3. The desktop seems to be stuck at 60 hz / 60 FPS.
OBSERVED RESULT
The desktop seems to be stuck at 60 hz / 60 FPS.
EXPECTED RESULT
Applications should report 75hz instead of 60.
SOFTWARE VERSIONS
(available in About System)
KDE Plasma Version: 5.14.3
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2
ADDITIONAL INFORMATION
Archlinux, Intel Modesetting
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