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When I am typing in a gnome terminal, any time I press a key that
triggers a sound (e.g., hitting "backspace" when already at the
beginning of the command line, hitting "tab" for tab completion when
there are multiple possible completion options), the key gets stuck on
repeat. The sound plays over and over. If I move the mouse to other
windows and focus on them, the repeated key continues there. (I have
focus-follows-mouse enabled, if that matters.)
This is 100% reproducible. But I have tracked it down to only occuring
when I go into Settings->Sounds, select the "Output" tab, and choose the
"Analog Output - Chat 50" device for sound output.
I do have a ClearOne Chat 50 plugged into my computer via USB. It seems
to be operating correctly for both input and output sound (ignoring the
key repeat issue).
Before figuring out that changing the sound output to be something other
than the Chat 50, I ruled out the keyboard being the problem by swapping
in a different model of USB keyboard. I also rebooted the system, and
that made no difference either.
I saw other bugs about repeating keys, such as bug #124406. I did try
disabling repeat with "xset r off". This seems to stop the repeated key
from taking effect in, say, Gnome terminal. But the repeating key is
probably still being issued somewhere in the system because when I then
trigger the bug the keyboard becomes unusable until I unplug it and plug
it back in again.
In all cases, unplugging the USB keyboard and plugging it back in again
eliminates the stuck repeating key.
I apologize for not selecting a particular package for this bug. This
bug does only seem to occur when the ClearOne Chat 50 is selected as the
output sound device, but I'm completely unclear about how an output
sound device could case key presses to operate incorrectly. I does not
seem like the sound device should be able to cause a keypress to repeat
even if the sound driver is buggy.
Ubuntu 18.04.4 LTS.
Linux mal 4.15.0-96-generic #97-Ubuntu SMP Wed Apr 1 03:25:46 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: bionic bot-comment
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Keys stuck on repeat when key triggers sound, and output device is ClearOne
Chat 50
https://bugs.launchpad.net/bugs/1872853
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