Bug#872663: System hangs when using docking station if external monitor is set as primary screen

[Wojciech Kozlowski]

Package: gnome
Version: 3.22+3

I have a T460p Lenovo Thinkpad laptop connected to a docking station
connected to an external screen with a DVI connection. If the external
monitor is set as the primary screen, upon un-docking the system will
hang and only a power cycle will restore. However, if the laptop screen
is set as primary, this problem does not occur. The problem does not
occur when docking at all even if the external screen was set to be the
primary one.

I would be happy to provide logs, but I'm a bit clueless as to which
ones would be useful here.

I am using Debian GNU/Linux Stretch so kernel 4.9.30-2+deb9u3 and libc6
2.24-11+deb9u1. The version of gnome is 1:3.22+3.