When moving certain windows across displays, the system may suddenly halt and has to be powered off

SYMPTOM
Either the window being dragged suddenly jumps to the top-left position of the external display to the right (ie. display 2, the first external display) and the system halts, or the system halts while the window is being dragged across the internal display

Affected applications:
Virtual Machine Manager, Vuirtual Machine window
LibreOffice Writer

Other problem
If a Libre Office Writer window is opened on the internal display, ie by launching LibreOffice Writer, the system halts.

IMPACT
Critical: in-app data loss, fsck data loss, forced system reboot

GETAROUND
Do not drag halting apps between displays
To move a LibreOffice Writer window, close it, and launch LibreOffice from a terminal window on the destination display. On command libreoffice --writer, LibreOffice opens on the display where
the terminal window is located.
For Virtual machines, close the window, move virtual machine manager to the destination display and open the virtual machine window there.

The halt is similar to how the system halts when the kernel command line parameter i915.enable_rc6=0 is missing.

uname --nodename --kernel-release --kernel-version && date --utc --rfc-3339=date && lsb_release --description --codename --short && dpkg --status libwayland-server0 | egrep "(^V|^Pa)" && dpkg --status gnome-session | egrep "(^V|^Pa)"
c89 4.8.0-28-generic #30-Ubuntu SMP Fri Nov 11 14:03:52 UTC 2016
2016-12-03
Ubuntu 16.10
yakkety
Package: libwayland-server0
Version: 1.11.0-2
Package: gnome-session
Version: 3.20.2-1ubuntu7