This is due to the conflict between xorg 1.13 and amd drivers. Can you please confirm whether this is a clean install of 12.10 or whether you upgraded the system.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1139563 Title: No boot time display (blank screen) for ATI RS880M Mobility Radeon HD 4200 Series in Ubuntu 12.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1139563/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs