(In reply to comment #8) Hi,
Okay, I just had a crash with Linux 3.7 kernel. Whether it is Linux 3.2 or 3.7 kernel, it seems like page fault is one of the cause of the crash after ACPI S3 State resume. However, Ubuntu is a lot more stable with Linux 3.7 kernel, but when it crashed, the crash pattern was similar to when it crashes with Linux 3.2 kernel. Also with Linux 3.2 kernel, even after resuming from ACPI S3 State once, the system tends to get unstable (i.e., I get random "Ubuntu has experienced internal error" type errors. The module that crashes is pretty much random.). Is this bug specific to Pentium III or Intel 815 chipset? I will rule out ICH2 southbridge because it was also used with early Pentium 4 systems, and those are fairly stable when it comes to ACPI S3 State resume. I have a couple of Intel and ASUS mainboards with Intel 850 chipset, and I have never seen this types of issues with ACPI S3 State resume. I will change the tag to reflect the latest development. I also have one other Intel 815E chipset mainboard from Intel (Intel D815EEA mainboard) so I will take a look at that one to see if I can reproduce the similar crash patterns. Intel did have many, many updates related to ACPI S3 State resume issues with D815EEA2 mainboard in the past. Regards, fpgahardwareengineer ** Also affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019863 Title: Occasional ATI Radeon 9800 Pro and Intel D815EEA2 mainboard ACPI S3 State Resume Freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1019863/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs