[kde] [Bug 486326] New: Failed to start Display Configuration when trying to have an external monitor

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=486326

            Bug ID: 486326
           Summary: Failed to start Display Configuration when trying to
                    have an external monitor
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: trolym7 at gmail.com
  Target Milestone: ---

Created attachment 169029
  --> https://bugs.kde.org/attachment.cgi?id=169029&action=edit
error showing when i plug in the HDMI cable to my other screen

SUMMARY
Connecting HDMI cable to laptop does not provide video output to the monitor.
Doesn't work on x11 nor wayland.

STEPS TO REPRODUCE
1. connect monitor
2. select any option in the display option menu

OBSERVED RESULT
shows the menu which you get from pressing meta+p but nothing happens

EXPECTED RESULT
video output to my second monitor

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: arch linux 6.8.7-zen1-2-zen 
(available in About System)
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION
this is reported in the journal when plugging in the HDMI cable:

Apr 30 09:07:10 magician systemd[4174]:
app-org.kde.kscreen-ed610eb0ed5746c6a93b4ec8dda8624e.scope: Couldn't move
process 81228 to requested cgroup
'/user.slice/user-1000.slice/user at 1000.service/app.slice/app-org.kde.kscreen-ed610eb0ed5746c6a93b4ec8dda8624e.scope':
No such process
Apr 30 09:07:10 magician systemd[4174]:
app-org.kde.kscreen-ed610eb0ed5746c6a93b4ec8dda8624e.scope: Failed to add PIDs
to scope's control group: No such process
Apr 30 09:07:10 magician systemd[4174]:
app-org.kde.kscreen-ed610eb0ed5746c6a93b4ec8dda8624e.scope: Failed with result
'resources'.
Apr 30 09:07:10 magician systemd[4174]: Failed to start Display Configuration.
Apr 30 09:07:10 magician systemd[4174]: Starting KScreen OSD service...
Apr 30 09:07:10 magician systemd[4174]: Started KScreen OSD service.

Error happens whenever i plug in, unplug, turn on or off my other monitor.
I only get logs like that when using x11, when on wayland, i don't get any logs
in the journal when i plug in the HDMI cable.
Interestingly i don't get any logs when OBS is open.

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