https://bugs.kde.org/show_bug.cgi?id=501789
Bug ID: 501789
Summary: system freezes when holding key that initiates
repeated bell sound in Emacs
Classification: Plasma
Product: kwin
Version: 6.3.3
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-crash
Assignee: kwin-bugs-n...@kde.org
Reporter: flupp+bugs.kde....@mailbox.org
Target Milestone: ---
Disclaimer: I am not sure if KWin is to blame here. However, it seems involved
in the issue.
In Emacs, certain key combinations (e.g., Ctrl+G) ring the bell (if not
configured otherwise). On my system, this produces an audible sound. When I
press and hold, e.g., Ctrl+G the whole system freezes while the bell sound is
played repeatedly (a new sound is started before the previous one is finished).
The system stays in that state (including the bell sounds) after releasing the
keys. The system needs to be hardly turned off.
When this occurs, the following message is written a lot to the journal (around
25 times per second according to the timestamps):
> kwin_wayland_wrapper[1993]: Key repeat discarded, Wayland compositor doesn't
> seem to be processing events fast enough!
So the system at least keeps logging while it appears frozen and is
unresponsive to user input.
Unfortunately, I was able to reproduce this behavior only with Emacs. Disabling
the bell in Emacs works around this issue. I only found one other application
that similarly rings the bell, namely xterm, however, with this one the next
bell sound in played only after the previous one finished and the problem does
not occur. It also occassionally produces the journal message, however, by far
not as rapidly as with Emacs.
There might be an issue with Emacs. However, since the whole system freezes, I
guess other components (KWin?) are involved as well.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.3.3
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.13.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz
Memory: 15,4 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
Manufacturer: LENOVO
Product Name: 20L50000GE
System Version: ThinkPad T480
--
You are receiving this mail because:
You are watching all bug changes.
