Ubuntu
xserver-xorg-video-ati package

  1. Bug #1577170
  2. Comment #18

Comment 18 for bug 1577170

Revision history for this message
Christophe (touil1976) wrote : Re: [solved] screen cannot be turned back on after being switched off after some time of inactivity

What I have noticed is that when two screens are plugged in the graphic card, and the desktop appears on both screen, and when I then choose to only use the dvi-connected screen via the "display" menu in ubuntu, the vga-connected screen goes off, and the dvi-connected screen only show the mouse on a black screen. To see the desktop again, I have to switch to tty1 (ctrl alt F1) and then ctrl alt F7.
I don't know if this could be related to the problem.