#1146577 ukui-settings-daemon: crashes with SIGILL when changing screen brightness

Package:
ukui-settings-daemon
Source:
ukui-settings-daemon
Description:
daemon handling the UKUI session settings
Submitter:
Pan Zhang
Date:
2026-09-03 11:19:02 UTC
Severity:
normal
#1146577#5
Date:
2026-09-03 11:16:27 UTC
From:
To:
Dear Maintainer,

After upgrading to ukui-settings-daemon 4.0.10.1-1, the daemon crashes
with SIGILL whenever a screen brightness change is applied.

The daemon is then respawned by kylin-process-manager and enters a
continuous crash/restart loop. While ukui-settings-daemon is not
running, global shortcuts provided by the media-keys plugin also stop
working.

Steps to reproduce:

   1. Start a UKUI session with ukui-settings-daemon 4.0.10.1-1 installed.
   2. Change the screen brightness using the settings UI, brightness keys,
   or D-Bus.
   3. Check the daemon status or coredumpctl output.

Actual result:

ukui-settings-daemon immediately crashes with SIGILL and is repeatedly
respawned by kylin-process-manager.

Expected result:

Changing the screen brightness should not crash ukui-settings-daemon,
and global keyboard shortcuts should continue to work normally.

Regards,