Sorry, I got sidetracked while getting a set of logs. However, some (yet slightly vague) findings may be useful - even if debugging gets maybe even harder:
Firstly: the computer (BIOS or whatever) behaves differently when external power is connected or only battery used, and secondly: it behaves differently depending on the last state of the vgaswitcheroo BEFORE the reboot. I need to do more testing regarding the former (probably frequency of crashes higher with external power), but the latter seemed to me pretty consistently only crashing after "echo OFF > /sys/kernel/debug/vgaswitcheroo/switch". I did yesterday a kernel-update to 2.6.38-8, I'll try to reproduce the findings and will try to see if anything changed in the behaviour. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in 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) _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp