(In reply to comment #30) > Hello all, I used to see very similar behaviour on my Sandy Bridge box. > Interestingly I'm also using an Asrock Board (H67M-GE). That indicates that > it might be a hardware issue. I flashed the latest BIOS version provided bei > Asrock (V 2.10, used to have 1.40 or 1.50 before, don't remember exactly) > and the issue went away for me, hasn't ever re-appeared since. > > If I remember correctly, the BIOS changelog mentioned something about fixing > the voltage settings of the GPU for the change to version 1.60. Asrock's > documentation is rather poor unfortunately, but searching the web for > "h67m-ge igpu voltage" yields several hits with descriptions of the BIOS > update: > "Modify default setting for IGPU voltage." > > As the bug seems to appear only with RC6 enabled there might be a connection > here. > If there's no new BIOS available for other boards, manually changing IGPU in > the BIOS/UEFI might also work around the issue maybe. > > Maybe that helps someone. > > Regards, > Stefan
Good call! ASRock's website doesn't appear to have direct links to older BIOS versions, but if you guess the links, and it turns up these versions: http://download.asrock.com/bios/1155/H67M(1.60)WIN.zip http://download.asrock.com/bios/1155/H67M(1.70)WIN.zip http://download.asrock.com/bios/1155/H67M(1.80)WIN.zip So if someone has an older revision B2 chipset they can try these versions. I RMA'd my board (given that it /was/ recalled because of the SATA issues) and got a new B3 chipset that supports Ivy Bridge and has BIOS v2.10. No more rc6 failures with this board. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1020733 Title: [sandybridge-m-gt2+] GPU lockup IPEHR: 0x78170003 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1020733/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
