https://bugs.kde.org/show_bug.cgi?id=430511
Bug ID: 430511
Summary: Hang when multiple virtual desktops are renamed to
empty name
Product: plasmashell
Version: 5.19.5
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: generic-crash
Assignee: plasma-b...@kde.org
Reporter: eli...@br.iand.fr
Target Milestone: 1.0
SUMMARY
Naming multiple virtual desktop with empty name (""), then clicking OK or
Apply, causes plasma to slow down severely. There is some limited
responsiveness for a few second, then it hangs for good.
Killing the X server interrupt the condition, however on re-login to the
session, no panel or widget appear, kwin is not present and the wallpaper is
the login manager wallpaper. (To get out of this sticky situation, call up
krunner, go to virtual desktop settings, press default then apply. Nothing will
appear to change, but killing the x server again and relogging in brings
everythings back to normal.)
Renaming a single desktop to empty name does not hang the system, however
compositor behaves erratically (do not show decoration on some windows, slows
down episodically). Not very reproducible behaviour. Stops when desktop is
renamed non-empty name and x server restarted. OpenGL 3 enabled for compositor,
NVidia proprietary driver.
Switching to another vterm reveal high CPU utilisation for X11, plasmashell and
kwin_x11 during this condition.
STEPS TO REPRODUCE
1. Right click on pager >> Configure virtual desktop
2. Create two desktops
3. Rename both desktops to empty name
4. Apply or OK
OBSERVED RESULT
Desktop environment hangs. Restarting X server results in broken plasmashell.
EXPECTED RESULT
Renaming works, or renaming is not accepted. Plasma continues to work.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Gentoo
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
ADDITIONAL INFORMATION
I wanted to have empty name so the "move to desktop" window menu is clearer.
(Maybe that's a connection to kwin doing weird things).
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