https://bugs.kde.org/show_bug.cgi?id=470278
Bug ID: 470278
Summary: problem with USB-C / TB4 display / KVM switch
Classification: Plasma
Product: KScreen
Version: 5.27.5
Platform: Slackware
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: oli...@diereehs.de
Target Milestone: ---
SUMMARY
***
When connecting the display or switching the display input it takes ~45 seconds
before any application can be started; the cursor simply starts spinning but
nothing happens.
In addition a session logout is not possible when the display is or was
connected during the session.
***
STEPS TO REPRODUCE
1. connect display or use the integrated KVM switch
OBSERVED RESULT
~45 second delay before any application can be used
session logout no longer possible (blank screen with a cursor) - reboot works
EXPECTED RESULT
no delay
working session logout
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Slackware-64 current, Kernel 6.1.30, X11
KDE Plasma Version: 5.27.5 and at least 5.27.4 (*)
KDE Frameworks Version: 5.106.0 and at least 5.105.0 (*)
Qt Version: 5.15.9
ADDITIONAL INFORMATION
Hardware used: Tuxedo InfinityBook Pro Gen7, Philips PHL 346P1C display with an
integrated KVM switch, connected via USB-C/TB4
(*) The problem is also present in earlier versions - I'm not exactly sure when
it started. Also the problem does not exist in XFCE.
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