This does look a lot like some bad interaction between i915/radeon(/vesafb?). Although we don't seem to have a full dmesg of a -7 kernel it seems like it's not vesafb-based.
It would be useful to have logs - both of good and bad boots - with the “drm.debug=0x0e” kernel argument added to the boot line. -- 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] Driver crash during recovery boot and in normal boot (Regression from 2.6.38-3 to -4) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
