https://bugs.kde.org/show_bug.cgi?id=461782
Bug ID: 461782
Summary: Something to do with windows management crashed or
froze, system went totally berserk, forced me to
reboot
Classification: Plasma
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I was using Chrome when suddenly , Chrome's windows seemed to disappear (but I
think it just went to the background, see below), and the rest of the system
behaved as follows:
- the window on the foreground was now Kate, it seemed to be either maximized,
or sized to occupy almost the whole screen, but it had no title bar nor borders
- Neither Kate nor the task manager at the bottom of the screen seemed to
respond to left-button clicks
- Alt+Tab didn't work, so I couldn't switch focus to any other of the
applications that were running
- at the top of the screen, in the narrow horizontal strip above Kate's window,
where its title bar was supposed to be, I could see the desktop behind, both
the background picture and the icons, and it responded to click-and-drag
- when hovering the mouse over icons in the task manager, they would react to
mouse-over, getting slightly highlighted, but (left) clicking did nothing
- the "minimize all windows" shift+super+D shortcut did nothing
- Chrome's icon in the task manager still was highlighted as running, and when
hovering it, the small window thumbnail-sized preview would show up
- it took me a while to realize, but RIGHT-click on Task Manager icons did
work, so I could do the following:
- right-clicked on Chrome's icon and did "New window": this opened a new Chrome
window which had a disproportionately thick, fully black border around it (like
almost as thick as the height of the Task Manager!!), with rounded corners, and
still had no window title bar and no proper window borders
- I did the same with KCalc and this one also lacked the title bar and proper
borders, but it did not have the ridiculous super-thick rounded black border
Because of all this the whole system was completely unusable and I was unable
to recover control of it, so I had to reboot, losing all my unsaved work,
fortunately not a lot.
It looks to me like some very specific window-related component crashed or
stopped responding, but I don't know which one.
- I don't think it was plasmashell (or at least it didn't simply crash),
because I could still see the desktop behind the windows
- I don't think it was Xorg in its entirety, or I would have been logged out
I have no idea if it's actually kwin, I just tried to guess.
There was no high CPU consumption while this was happening (nor just before it
did).
SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 5.26.2
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 6.0.6-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-1065G7 CPU @ 1.30GHz
Memory: 7.3 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Plus Graphics
Manufacturer: LENOVO
Product Name: 81WE
System Version: IdeaPad 3 15IIL05
ADDITIONAL INFORMATION
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