Ubuntu
xfce4-settings package

  1. Bug #1431149
  2. Comment #17

Comment 17 for bug 1431149

Revision history for this message
Sebastiaan Breedveld (s-breedveld) wrote :

I also have this problem, which has been bugging me also in the pre-alpha releases of 18.04. It happens occasionally to me on a Thinkpad E580, and was expecting hardware-like resume problems, or issues with light-locker.

I noticed that connecting an external display worked for the external display, so the desktop was running properly. Trying to revive my laptop display using xrandr gave me an error: "Configure CRTC 0 failed".

I found a solution posted here that works for me: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785622

Which is:
xfsettingsd --replace