https://bugs.freedesktop.org/show_bug.cgi?id=91880
--- Comment #187 from Lauri Gustafsson luutifa@gmail.com --- About "I can force a system hard-lock by doing anything which disables a monitor", on my system it used to crash more frequently the less desktop area I had. Small resolution monitor crashes often, multi monitor setup less often. But I don't have the hardware any more so I can't test if it still works that way.