If this is still a problem, please try booting a current upstream kernel with this patch applied:
http://bugzilla.kernel.org/show_bug.cgi?id=12006#c36
and attach the dmesg output here.
If this is still a problem, please try booting a current upstream kernel with this patch applied:
http:// bugzilla. kernel. org/show_ bug.cgi? id=12006# c36
and attach the dmesg output here.