https://bugs.freedesktop.org/show_bug.cgi?id=72159

--- Comment #4 from octoploid octoploid@yandex.com --- (In reply to comment #1)

(In reply to comment #1)

...

When I zap xorg-server 1.15.0 RC3 with alt-ctrl-backspace my monitor switches off and I can't switch to another virtual console.

Can you still log in via ssh at that point?

Yes. SysRq still works, too.