Thanks to the guys in the #radeon channel on irc, I found a way to solve the problem. You have to apply this patch to the source of the video driver (xfree86-video-ati-7.7.0) : https://paste.debian.net/plain/682956 and compile then install it (using --prefix=/usr for the configure process).
** Summary changed: - screen cannot be turned back on after being switched off after some time of inactivity + [solved] screen cannot be turned back on after being switched off after some time of inactivity -- You received this bug notification because you are a member of Ubuntu-X, 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1577170/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
