https://bugs.kde.org/show_bug.cgi?id=514240
Bug ID: 514240
Summary: Built-in screen freezes on login if adaptive sync is
not set to "Always"
Classification: Plasma
Product: kwin
Version First 6.5.4
Reported In:
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I am using an Asus ROG Flow Z13 laptop with a built-in screen. Using Manjaro
with KDE, after I updated the system my screen would freeze upon login, though
I could still hear applications opening. The freeze does not occur
consistently. A fresh install of Manjaro v25 is working correctly for both KDE
and XFCE, KDE breaks upon update and can be fixed by rolling the update back.
Manjaro v26 can already freeze during the installation process. The problem
seems to be caused specifically by adaptive sync, setting it to "Always" fixes
the issue.
STEPS TO REPRODUCE
1. Start the Manjaro v26 KDE installer, the screen may freeze.
2. Install Manjaro and repeatedly log in or repeatedly launch the installer
until the freeze occurs.
OBSERVED RESULT
The screen freezes, all other functionality (second screen, SSH) remains
unaffected.
EXPECTED RESULT
The screen works correctly.
SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.3-arch1-2-flowx13 (64-bit) (The bug is not specific to
this kernel, it also occurs with the vanilla kernel)
Graphics Platform: offscreen
Processors: 32 × AMD RYZEN AI MAX+ 395 w/ Radeon 8060S
Memory: 128 GiB of RAM (121.5 GiB usable)
ADDITIONAL INFORMATION
The screen freezes if and only if adaptive sync is not set to "Always". If a
second monitor is connected during login the bug does not occur. If a second
monitor is connected after the login it does not unfreeze the built-in screen
but the second monitor works correctly. If the built-in screen is turned off
due to inactivity and then turned on again this unfreezes the built-in screen.
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