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Thread: Thinlpad x40, Ubuntu 11.10 - wake form hibernation - a random event?

  1. #1
    Join Date
    May 2010
    Location
    Sofia, Bulgaria
    Beans
    144
    Distro
    Ubuntu 12.04 Precise Pangolin

    Thinlpad x40, Ubuntu 11.10 - wake form hibernation - a random event?

    Thinkpad x40.

    Ubuntu 11.10.

    Kernel - 3.2 (installed form deb)

    Video drivers from xorg-edgers ppa.

    The machine will wake up OK from hibernation most of the time. Sometimes, though, the PC will start the waking up, but will stop, and the caps lock indicator will flash on and off (kernel panic???) I have to power off the PC, and restart after first boot, for hibernation to work properly.

    It seems the problem happens when the laptop is unplugged( battery only). The battery has power enough power left for the machine to work.

    I found this article here, (ACPI S4 hardware signature mismatch part) but not sure what to do, do I have ACPI in kernel or not.
    Edit: Adding
    Code:
    acpi_sleep=s4_nohwsig
    in grub to kernel boot options does not make any difference

    Sometimes, the PC will fail to hibernate and the PC will stay on, but I assume the problems are unrelated.

    Swap is 4GB, ram - 1GB, this should be more than enough.

    Any ideas?
    It all started somewhere here:
    Hello everybody out there using minix -
    I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones...

  2. #2
    Join Date
    May 2010
    Location
    Sofia, Bulgaria
    Beans
    144
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Thinlpad x40, Ubuntu 11.10 - wake form hibernation - a random event?

    I installed uswsusp.
    Running
    Code:
    s2disk
    will result in
    Code:
    s2disk: Could not lock myself. Reason: Cannot allocate memory
    It all started somewhere here:
    Hello everybody out there using minix -
    I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones...

  3. #3
    Join Date
    May 2010
    Location
    Sofia, Bulgaria
    Beans
    144
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Thinlpad x40, Ubuntu 11.10 - wake form hibernation - a random event?

    Most probably the reason was a hardware issue - I changed the motherboard and cannot reproduce the issue anymore.
    It all started somewhere here:
    Hello everybody out there using minix -
    I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones...

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