Thanks, Here is my dmesg from a clean boot: https://dl.dropbox.com/u/63420/dmesg.txt Now that I scanned it more thoroughly I found these: [ 0.363136] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored and [ 0.387856] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug my /proc/cmdline is: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=44cf687d-4827-4765-8758-98d44a745d07 ro quiet resume=/dev/sda2 maybe they indicate a lurking problem? (in parallel, I will try booting with pci=nocrs and report back) And there are other people having this issue, some from way back, as can be seen here https://bbs.archlinux.org/viewtopic.php?id=144381 (Don't be fooled by the linux 3.4.x reference in the title, it happens with older kernels, too) Some of them have found the "solution" to be "never close the lid" but this is unacceptable, for me. Again, thanks! On Mon, Aug 13, 2012 at 12:03 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Sunday, August 12, 2012, Athlion wrote: >> On Sun, Aug 12, 2012 at 2:01 PM, Athlion <athlion@xxxxxxxxx> wrote: >> > On Sun, Aug 12, 2012 at 1:08 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: >> >> This seems to be the last kernel message you've got. >> >> >> >> It looks like there's a problem with a power management notifier within >> >> the kernel. Perhaps a race condition, since it is not reproducible 100% >> >> of the time. >> >> >> >> Does it happen if you don't use the lid to trigger suspend? >> >> >> >> Rafael >> > >> > No, it does not. >> > >> > If I don't use the lid, the suspend succeeds 100% of the time (at >> > least, I have achieved over 4 days of uptime by using the >> > logout/suspend button of xfce, I never could stand not closing the lid >> > for more...) >> > >> > What I don't know exactly is how to begin tracking this problem down. >> >> Furthermore, the suspend actually *happens* if I initiate a shutdown >> or reboot procedure, right after the point where the system says >> killing all processes. On resume, the shutdown/reboot resumes >> normally. > > There seems to be an input event handling race condition with system suspend > on your machine. I wonder if it's related to the specific system configuration, > though, because no one else has reported anything like this before. > > I'm not sure what to do to debug this further at the moment. > > Please attach dmesg output from a clean boot. > > Thanks, > Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html