https://bugs.kde.org/show_bug.cgi?id=516402
Bug ID: 516402
Summary: [Wayland][amdgpu] Display refresh rate stuck at 60Hz
on Kernel 6.18, works fine on 6.12 LTS
Classification: Plasma
Product: kwin
Version First unspecified
Reported In:
Platform: CachyOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
After updating the kernel from 6.12.74-1-lts to 6.18, the option to change the
display refresh rate disappeared from the System Settings. The refresh rate is
now locked at 60Hz, whereas on the LTS kernel, I can successfully switch
between available modes (e.g., 60Hz/120Hz depending on the panel).
Steps to reproduce:
Boot into CachyOS with Kernel 6.18.
Open System Settings -> Display and Monitor -> Display Configuration.
Check the "Refresh rate" dropdown menu.
Observed Result:
Only 60Hz is available, or the selection is missing/locked.
Expected Result:
All supported refresh rates for the IdeaPad Pro 5 16APH8 panel should be
visible and selectable (as they are on Kernel 6.12).
System Information:
OS: CachyOS Linux
KDE Plasma: 6.6.0
KDE Frameworks: 6.23.0
Qt Version: 6.10.2
Kernel: 6.18 (Problematic) / 6.12.74-1-lts (Working)
Graphics Platform: Wayland
GPU: AMD Radeon 780M (Ryzen 7 7840HS)
Device: Lenovo IdeaPad Pro 5 16APH8 (83AR)
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