Comment 9 for bug 56501

I am having the same error. Using Intel on Lenovo Thinkpad X60.

Gdm log says:

Error in I830WaitLpRing(), now is 7023360, start is 7021359
pgetbl_ctl: 0x3ffc0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 1810000
LP ring tail: 9b38 head: 938c len: 1f801 start 0
eir: 0 esr: 0 emr: ffff
instdone: ffc0 instpm: 0
memmode: 306 instps: f0000
hwstam: ffff ier: 0 imr: ffff iir: 0
space: 129100 wanted 131064

Fatal server error:
lockup