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View Full Version : [xubuntu] 16.04: After unlocking screen in multimonitor setup the additional ones switch off



Nyyr
May 12th, 2017, 03:50 PM
Hello,

I have a notebook with docking station with two HDMI monitors attached to the docking station.
Desktop is extended over all three (monitor---laptop display---monitor).
When I lock the screen and then unlock it, only the integrated notebook display shows its part of desktop.
The other two monitors resume from sleep (as indicated by their power led) but they are black and after
a while they fall asleep again.

xrandr shows no difference between this state and the normal one.

The only thing that helps is to run xfce4-display-settings, disable use of the LEFT (!!!) monitor and when
xfce4-display-settings ask whether to keep the new settings I answer no to revert it back. Then I rearrange
the desktop displays to the original settings (monitor---laptop display---monitor).

It used to work well but suddenly it stopped (maybe some upgrade?).

Any ideas what to check or is it a bug?