Hello,

Here is a backtrace obtained in a crash very similar to the situation
here, which is what prompted me to write the patch that Jean-Philippe
attached to this bug.  The proposed patch also did fix the following
bug report:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838703

The relation between all these crashes is that the users have brltty
running, which runs a uinput device.

Jean-Philippe, could you try Debian's xserver-xorg-input-libinput
0.23.0-1, as suggested by Emilio in the Debian bug entry?

Samuel