Touching on multiple touchscreens simultaneously breaks X11

[Stephen D'Angelo]

This bug is fixed in version 0.28.1, which is shipped with Cosmic. I am requesting this be backported to Bionic. I know this was fixed relatively recently, so I'm not sure if it's "in the queue" or not.

Here is the libinput bug report:

https://gitlab.freedesktop.org/libinput/libinput/issues/153

Here is the commit that fixes the bug:

https://gitlab.freedesktop.org/xorg/driver/xf86-input-libinput/commit/a759610292a53067fc811e70703bffff8dc0cb16

I have verified that installing the following debs from Cosmic fixes the issue I am seeing:

libinput-bin 1.12.1-1
libinput10:amd64 1.12.1-1
xserver-xorg-input-libinput 0.28.1-1