Kernel 3.5.0-27.46 contained a bunch of changes to the radeon driver. Since most (all?) the bug reporters seem to be using a radeon graphic card, I've built a test kernel with all these changes reverted:
ea7e2ec Revert "drm/radeon: add new AMD ACPI header and update relevant code (v2)" 02f3061 Revert "drm/radeon: add a license header to radeon_apci.c" 665bfe9 Revert "drm/radeon: track whether the GPU controls the backlight (v2)" 9acd16c Revert "drm/radeon: rework legacy backlight control" e09a7a2 Revert "drm/radeon: add backlight control for atom devices (v2)" d934c3c Revert "drm/radeon: refactor radeon_atif_call" dfa4cad Revert "drm/radeon: implement radeon_atif_verify_interface" 28b9be5 Revert "drm/radeon: implement wrapper for GET_SYSTEM_PARAMS" 4fe88b6 Revert "drm/radeon: implement handler for ACPI event" 1608812 Revert "drm/radeon: re-organize the acpi notifier callback" 501544d Revert "ACPI video: allow events handlers to veto the keypress" 4ed8dc6 Revert "drm/radeon: block the keypress on ATIF events" I've uploaded the test kernels (both amd64 and i386) here: http://people.canonical.com/~henrix/lp1167114/ Could you please git them a try and report back? Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1167114 Title: Ubuntu Kernel 3.5.0-27 does not boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1167114/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs