https://bugs.kde.org/show_bug.cgi?id=451703
Bug ID: 451703
Summary: Adaptive sync keeps resetting to Automatic
Product: kwin
Version: 5.24.3
Platform: Debian unstable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: chris.k...@gmail.com
Target Milestone: ---
SUMMARY
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The Adaptive sync setting, under System Settings -> Display and Monitor, keeps
resetting back to Automatic (the default) when the monitor is turned off or
goes to sleep.
STEPS TO REPRODUCE
1. Change "Adaptive sync" to "Never" in System Settings and click Apply (then
Keep).
2. Turn off the monitor, or let power saving put it to sleep
3. Turn on the monitor, or wake it up
OBSERVED RESULT
The "Adaptive sync" setting is set back to Automatic.
EXPECTED RESULT
The "Adaptive sync" setting stays on Never.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Debian Linux kernel version 5.16.12
(available in About System)
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
I'm using a Radeon RX 580 with the amdgpu kernel driver, with an LG 27GP850
monitor connected via Display Port. Because of what seems to be bug #451386,
Adaptive sync causes KWin-Wayland to seize up for me when the display is turned
off or goes to sleep. I set Adaptive sync to Never which seems to partially
work around the issue, letting KWin-Wayland remain functional when the monitor
is turned off and back on (although bug #451702 prevents this from being a full
workaround), but I found it keeps getting reset back to Automatic afterward.
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