@Seth Forshee This log might be a better one to look at. I tried booting several times, each boot was EXACTLY the same, no blacklisting of the radeon driver, no use of modeset=0 or other boot parameters. The only variable was the time delay between getting the GRUB menu and pressing the enter key on the menu to get the boot to occur.
The very last boot (time entry 20:50:16) resulted in a successful boot. I believe all the others resulted in a black screen. I used drm.debug=0x0e for all boots. ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/727620/+attachment/2134515/+files/kern3.log -- 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) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
