harry, the whole of the kernel log will get saved to kern.log as long as the system is booting that far. If it's not booting that far and you're able to get a terminal then you can try to collect the output of the dmesg command. Failing that, you could try booting into recovery mode, and if you get the errors then try to collect dmesg. Otherwise the best you can do is probably to supply the exact text of whatever messages you see when this happens (taking a picture of the screen is one option).
-- 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] Kernel BUG during recovery boot and in normal boot (Hybrid graphics) _______________________________________________ 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