https://bugs.kde.org/show_bug.cgi?id=481467
Bug ID: 481467
Summary: Set refresh rate not applied after reboot
Classification: Plasma
Product: KScreen
Version: 5.93.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: micraf...@gmail.com
Target Milestone: ---
SUMMARY
When I set my monitor to 120Hz and reboot, it still shows 120Hz after reboot
kscreen-doctor and the kcm, but my monitor reports 144Hz. VRR is set to
automatic (and does not seem to be used for the desktop).
Reproducible every time on this setup.
STEPS TO REPRODUCE
1. Set screen to lower than max refresh rate
2. Reboot system
3. Screen receives max refresh rate
OBSERVED RESULT
The monitor receives a different refresh than is set. Changing the Adaptive
Sync mode does not seem correct the refresh rate. To get back to 120Hz, I need
to set it to something else first, pressing Apply twice. `kscreen-doctor -o`
ouput remains exactly identical (as checked by diff)
EXPECTED RESULT
The monitor should receive the refresh rate I set.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0 beta3
Kernel Version: 6.6.16-1-lts (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: AMD Radeon RX 6600 XT
ADDITIONAL INFORMATION
We're talking Output 1 here.
$ kscreen-doctor -o
Output: 1 DP-2
enabled
connected
priority 1
DisplayPort
Modes: 0:3840x2160@60! 1:3840x2160@144 2:3840x2160@120*
3:3840x2160@120 4:3840x2160@96 5:3840x2160@72 6:3840x2160@60 7:3840x2160@60
8:3840x2160@60 9:3840x2160@50 10:3840x2160@48 11:3840x2160@24
12:3840x2160@24 13:2560x1440@144 14:2560x1440@120 15:2560x1440@60
16:1920x1200@60 17:1920x1080@144 18:1920x1080@120 19:1920x1080@120
20:1920x1080@60 21:1920x1080@60 22:1920x1080@60 23:1920x1080@24
24:1920x1080@24 25:1600x1200@60 26:1680x1050@60 27:1280x1024@60
28:1440x900@60 29:1280x800@60 30:1280x720@120 31:1280x720@120
32:1280x720@100 33:1280x720@60 34:1280x720@60 35:1280x720@50 36:1024x768@75
37:1024x768@60 38:800x600@75 39:800x600@60 40:720x576@50 41:720x576@50
42:720x480@60 43:720x480@60 44:720x480@60 45:720x480@60 46:640x480@75
47:640x480@60 48:640x480@60 49:1600x1200@60 50:1280x1024@60 51:1024x768@60
52:2560x1600@60 53:1920x1200@60 54:1280x800@60 55:3840x2160@60
56:3200x1800@60 57:2880x1620@60 58:2560x1440@60 59:1920x1080@60
60:1600x900@60 61:1368x768@60 62:1280x720@60
Geometry: 1280,0 3840x2160
Scale: 1
Rotation: 1
Overscan: 0
Vrr: Automatic
RgbRange: unknown
HDR: disabled
Wide Color Gamut: disabled
ICC profile: none
Output: 2 DP-3
enabled
connected
priority 2
DisplayPort
Modes: 0:2560x1440@60*! 1:1920x1200@60 2:2048x1080@60
3:2048x1080@24 4:1920x1080@60 5:1920x1080@60 6:1920x1080@60 7:1920x1080@50
8:1600x1200@60 9:1680x1050@60 10:1280x1024@75 11:1280x1024@60
12:1440x900@60 13:1280x800@60 14:1152x864@75 15:1280x720@60 16:1280x720@60
17:1280x720@60 18:1280x720@50 19:1024x768@75 20:1024x768@60 21:800x600@75
22:800x600@60 23:720x576@50 24:720x576@50 25:720x480@60 26:720x480@60
27:720x480@60 28:720x480@60 29:640x480@75 30:640x480@60 31:640x480@60
32:640x480@60 33:720x400@70 34:1600x1200@60 35:1280x1024@60 36:1024x768@60
37:1920x1200@60 38:1280x800@60 39:1920x1080@60 40:1600x900@60
41:1368x768@60 42:1280x720@60
Geometry: 0,0 1280x2276
Scale: 1.125
Rotation: 2
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
$ kscreen-doctor -i
Environment:
* KSCREEN_BACKEND : [not set]
* KSCREEN_BACKEND_INPROCESS : [not set]
* KSCREEN_LOGGING : [not set]
Logging to : [logging disabled]
Preferred KScreen backend : KSC_KWayland.so
Available KScreen backends:
* KSC_Fake.so: /usr/lib/qt6/plugins/kf6/kscreen/KSC_Fake.so
* KSC_KWayland.so: /usr/lib/qt6/plugins/kf6/kscreen/KSC_KWayland.so
* KSC_QScreen.so: /usr/lib/qt6/plugins/kf6/kscreen/KSC_QScreen.so
* KSC_XRandR.so: /usr/lib/qt6/plugins/kf6/kscreen/KSC_XRandR.so
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