Lenovo X60 freezes after hibernate/undock/resume

[David Hugh-Jones]

Binary package hint: acpi-support

Using 2.6.27-2 (from the Intrepid archive), with 8.04.1, and acpi-support version 0.109, hibernation works fine. If I resume, it goes back to the grub login, but then after I boot the appropriate kernel, and after about 30 seconds of splash screen, it resumes OK.

However, if I undock the laptop after hibernation but before resuming, then the boot process freezes while showing the splash screen, and I have to do a hard reboot.

[Parthan SR (parth-technofreak)]

Thank you for taking your time for reporting this bug and helping make Ubuntu better. Unfortunately you haven't provided additional information which we require in order to look into this bug. Please provide the following as individuals attachments attached to this bug report.

 * Output of uname -a
    * uname -a > uname.txt
 * Output of sudo lspci -vvnn
    * sudo lspci -vvnn > lspci.txt
 * Output of sudo dmidecode
    * sudo dmidecode > dmidecode.txt
 * Try to suspend/hibernate and then restart the system and attach /var/log/kern.log.0
 * Tarball of /proc/acpi directory. You can't just tar all files because their content sometimes changes etc.
    * cp -r /proc/acpi /tmp
    * tar -cvjf ~/acpi.tar.bz /tmp/acpi
    * attach acpi.tar.bz from your home directory

You may additionally try debugging your problem as explained in https://wiki.ubuntu.com/DebuggingACPI. Thanks in advance.

[Parthan SR (parth-technofreak)]

Marking this bug as incomplete until the required information are provided.

[David Hugh-Jones (davidhughjones)]

$ uname -a
Linux dave-laptop 2.6.27-2-generic #1 SMP Thu Aug 28 17:20:02 UTC 2008 i686 GNU/Linux

[David Hugh-Jones (davidhughjones)]

When I try to copy /proc/acpi to /tmp I get "/proc/acpi/event: Device or resource busy".

I'm away from my dock for the next few days; but I'll attach a bit of the log from a normal (working) hibernate/resume.

[David Hugh-Jones (davidhughjones)]

Here. A successful hibernate/resume sequence starts at Sept 1 20:42. There also ought to be a failed one earlier on... but I can't remember which time it was exactly.

[Leann Ogasawara (leannogasawara)]

Hi David,

Can you comment if this issue existed with the 2.6.26 kernel previously available with Intrepid?

[David Hugh-Jones (davidhughjones)]

I'll test when I get a chance.

[David Hugh-Jones (davidhughjones)]

Yes, exactly the same bug exists with kernel 2.6.26-5. Unfortunately, the failed resume seems to leave no trace in any logs - the log goes straight from the hibernate to my next successful restart.

[David Hugh-Jones (davidhughjones)]

Doing this using recovery mode with 2.6.26-5, the last message I get before the hang is "suspending console(s)".

[David Hugh-Jones (davidhughjones)]

A bit more information

(1) the bug happens whenever I resume and am unconnected to the dock. E.g. if I suspend unconnected and resume unconnected, it happens.

(2) The system is not completely unresponsive. Sometimes, if I bash enough of the "Fn" keys, it eventually resumes properly - in particular, if I hit the "Sleep" key combination.

(3) Also, the bug is intermittent. In particular, if I suspend, then resume, get the bug, but then manage to get the computer to resume, afterwards the bug seems to go away.

[David Hugh-Jones (davidhughjones)]

This is still present in a clean 8.10 beta, using the Live CD.

[David Hugh-Jones (davidhughjones)]

More debugging.

(1) if I start unconnected from the dock, I can suspend/resume normally. If I connect to the dock, then remove the computer, the problem occurs.

(2) Using the method in https://wiki.ubuntu.com/DebuggingKernelSuspend , I found that removing the modules "ata_generic", "ata_piix", and "pata_acpi" allows me to suspend and resume normally when undocked.

[Launchpad Janitor (janitor)]

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Triaged a while ago but has not had any updated comments for quite some time. Please let us know if this issue remains in the current Ubuntu release, http://www.ubuntu.com/getubuntu/download . If the issue remains, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[David Hugh-Jones (davidhughjones)]

I don't know whether it still remains because I cannot resume from
hibernation anyway. See bug #46968 .

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]