Comment # 14 on bug 964548 from Jan Kundr�t

I can reproduce the problem on a Gentoo box with Qt 5.6 from git (couple months
old) and KF5/plasma from git (day or two old). My Plasma session was started on
LVDS1, xrandr-ed to DP2, screen locked, and if I power-cycle my DP2 screen, the
locker is gone.

After applying the patch, the locker bypass is gone, but there's a regression,
another screen locker pops up immediately (but with a nice animation) after I
unlock the older one. This only happens when there was a power cycle of the
screen, and I can get back to my session after I've unlocked the second
screenlocker.