Bug 481338

Summary:	Pressing ESC to close the Overview effect can hang KWin
Product:	[Plasma] kwin	Reporter:	Adam Fontenot <adam.m.fontenot+kde>
Component:	effects-overview	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	fanzhuyifan
Priority:	NOR	Keywords:	qt6
Version First Reported In:	5.93.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Adam Fontenot 2024-02-14 21:20:25 UTC

SUMMARY

Unfortunately (?), I've only encountered this once. I have not reproduced it yet, although I'm not in the habit of closing Overview with a shortcut so I may not encounter it again organically.

STEPS TO REPRODUCE
1. Have a bunch of applications running in a Plasma 6 Wayland session.
2. Open Overview. (I did this with a hot corner.)
3. Pres the ESC key.

OBSERVED RESULT
KWin immediately hangs, with the Overview effect still visible on the screen. Cursor not visible. Restarting plasmashell in a vterm did not resolve the issue, so I had to kill (and lost) my session.

EXPECTED RESULT
No hang; ordinarily the ESC key closes the effect. I immediately tried to reproduce the issue just now, and this ordinarily works. It's not clear to me what was different about this other instance.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Kernel Version: 6.7.4-arch1-1 (64-bit)
Graphics Platform: Wayland

Comment 1 fanzhuyifan 2024-02-14 21:28:05 UTC

Thank you for your bug report! Unfortunately I cannot reproduce this on my end, and I don't think currently we have enough information to proceed. If this happens again, could you switch to a VT and check if kwin is using 100% of CPU? Could you also attach a gdb to the running kwin_wayland and generate a backtrace with debug symbols? (You could also generate a coredump for later use)

Thanks!

Comment 2 Bug Janitor Service 2024-02-29 03:46:28 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 3 Bug Janitor Service 2024-03-15 03:46:52 UTC

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!