Thank you for your anwer. -> The bug report above contains catalyst because I was unable to get to a working GUI without it (and when I try to send bug report from console, it logs in with wrong information and I don't know how to change that). -> emailcustomercare just says that their driver comes "as-is" and that's it :-(
Following your instructions: I uninstalled the driver following the instructions under Removing Catalyst/fglrx of your cchtml link. -> First reboot: Everything works great -> Second reboot: Same problems again, this time even 2x complete system hang (NumLock and CapsLock not responding, Ctrl+Alt+Backspace and Ctrl+Alt+Delete not working). -> Choosing Advanced Ubuntu Options -> Recovery mode -> Resume boot, I finally succeeded getting to a working GUI (GNOME Fallback). I created an error report with the actual problem situation (no catalyst installed) and marked it as a duplicate of this bug. Link: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1176053 I will now install catalyst manually, following your instructions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1173217 Title: Screen edges are in the middle of the screen! AMD Radeon HD7570M To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1173217/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs