Hi, I don't have Debian on this computer, but I'd like to note that on Ubuntu, I only need to downgrade xserver-xorg-core to get my dual-head/xinerama working again. It's _not_ the radeon driver that's the problem. Of course, the Debian bug might be a totally different problem, but I doubt it. https://launchpad.net/distros/ubuntu/+source/xorg-server/+bug/26316 Best regards, Stian