Bug 483540

Summary: Opening Task Switcher and Closing with few Xwayland or WINE application freezes the shell
Product: [Plasma] kwin Reporter: jinwk00 <colinjinwk00>
Component: tabboxAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: kde
Priority: NOR Keywords: qt6
Version First Reported In: 6.0.2   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description jinwk00 2024-03-14 12:15:58 UTC 
SUMMARY
***
Every time when Task switcher (Compact) is opened while having some Xwayland or WINE applications, the entire shell freezes for random amount of time, whether if it is opening or closing. The issue persists even after those applications, until I restart SDDM or plasmashell. Once there was an entire freeze on the plasmashell, had to kill user through SSH
***


STEPS TO REPRODUCE
1. Have several Xwayland and WINE applications opened
2. Optional: Let the device sleep 
3. Open task switcher, let it close, observe the freeze

OBSERVED RESULT
Shell gets frozen for random amount of time

EXPECTED RESULT
It should be opening and closing right away

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.7.6-201.fsync.fc39.x86_64
(available in About System)
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
CPU: AMD Ryzen 7 7730U (16) @ 4.55 GHz
GPU: AMD Barcelo
Host: ThinkPad E16 Gen1 AMD
Comment 1 jinwk00 2024-03-14 12:26:49 UTC 
Note: the same issue can be observed from Window previews from Icons-only Task Manager on Panels
Comment 2 David Edmundson 2024-03-14 13:53:35 UTC 
Can you clarify which part you mean by "shell" does the mouse move?
Comment 3 jinwk00 2024-03-14 14:03:42 UTC 
(In reply to David Edmundson from comment #2)
> Can you clarify which part you mean by "shell" does the mouse move?

Mouse doesn't move either as well
Comment 4 Bug Janitor Service 2024-03-29 03:46:58 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 5 Bug Janitor Service 2024-04-13 03:48:06 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!