https://bugs.freedesktop.org/show_bug.cgi?id=53122
--- Comment #3 from Alex Deucher agd5f@yahoo.com 2012-08-05 23:11:37 UTC --- (In reply to comment #2)
Isn't that what appears in the syslog? (which I already quoted). I've got the old syslog, but I've since rebooted and dmesg now reports something else.
Please attach your full dmesg so we can see more details about your hw configuration.