I think this might be originating from a call to XIChangeProperty() but
I can't yet find any API mismatches between mutter and xserver-xorg-
input-libinput. Although there are new properties upstream, neither of
the packages in Ubuntu support them yet.
If anyone can reproduce one of these crashes then please help us to
debug the issue by adding MUTTER_SYNC=1 to /etc/environment, then reboot
and tell us what new crashes the system encounters.
** Also affects: xserver-xorg-input-libinput (Ubuntu)
Importance: Undecided
Status: New
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which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/2014986
Title:
gnome-shell crashed with signal 5 [The error was 'BadMatch (invalid
parameter attributes)'. (Details: serial xxxx error_code 8
request_code 131 (XInputExtension) minor_code 57)]
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