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.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1577170 Title: [solved] screen cannot be turned back on after being switched off after some time of inactivity Status in xserver-xorg-driver-ati: New Status in xserver-xorg-video-ati package in Ubuntu: New Bug description: I did a fresh install of ubuntu 16.04 on my old dell computer in which there is an ati radeon X1300 graphics card. Whenever the screen turns off due to inactivity, it cannot be woken up by moving the mouse or by hitting a key. When I kill the Xorg process via ssh with another computer, the screen then comes to life again and I can log back in. When I remove the graphic card from the computer and use the built in graphic card instead, the bug doesn't occur. So I guess it is related to the radeon driver. Oddly enough, there is no problem waking the screen when I type "xset -display :0.0 dpms force off" in a terminal. Moreover typing gnome- screensaver-command -a in a terminal turns my screen off and after typing this line, the screen can be woken up by moving the mouse or by hitting a key. I'm confused. To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/1577170/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

