Bug#683338: gdm3: no prompt anymore after login cancel using disable_user_list

[paul.szabo at sydney.edu.au]

I see the same problem at version 3.4.1-3. I do not see any "funny" log
lines, just two copies of

Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xc00007 (Login Wind)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.

added to /var/log/gdm3/:0-greeter.log .

I can press Atl-Ctrl-Backspace to cause the X server to die, then X and
the greeter restart correctly.

Cheers, Paul

Paul Szabo   psz at maths.usyd.edu.au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia