https://bugs.freedesktop.org/show_bug.cgi?id=39513
--- Comment #3 from Alex Deucher agd5f@yahoo.com 2011-07-28 13:21:06 PDT --- Please attach a copy of your vbios.
(as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom
Also attach a copy of your dmesg output from the 3.0 kernel.