According to https://bugzilla.kernel.org/show_bug.cgi?id=30052#c17 this seems to be fixed in recent kernel releases. I think that the patches fixing it should be backported!
> I can't reproduce this bug on 2.6.39-git19 and 3.0-rc3. > Seems bug fixed. > Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727620 Title: [Radeon HD 5650 and 5470] Kernel BUG during recovery boot and in normal boot (Hybrid graphics) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/727620/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
