As a workaround, you can add 'text' to your grub line to get a terminal. Now you have to run 'sudo service lightdm start' every time. This never failed for me and it's quicker than rebooting over and over again.
The same problem does not appear on Arch Linux with systemd, with the latest kernel and xorg. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070677 Title: Xorg fails to start because of Radeon Issue [(EE) RADEON(0): [drm] failed to set drm interface version] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1070677/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs