OS can't hiberate and suspend.

I just upgraded from Hardy to Intrepid. And I have the exact same issue. Also, my User Session doesn't list Hibernate anymore (I don't use Suspend). I thought I read this was an issue with pm-utils, but I checked and I am running the latest version according to Update-Manager.

FYI, Hibernate worked perfectly for me under Hardy (Dell Latitude).

The driver of some device can't handle the suspend/hibernate event as expected from our investigation.
After upgraded to Intrepid final, we can't reproduce it on HP-2230s.

But I can still reproduce this issue on SONY Vaio VGN-Z540. There's a patch fixing this bug for the SONY laptop which already in kernel 2.6.28-rc3:

commit 6158d3a2323835546c7cf83a170316fa77b726e0
Author: Matthew Garrett <email address hidden>
Date: Wed Oct 29 14:01:03 2008 -0700

    sony-laptop: ignore missing _DIS method on pic device

    At least the Vaio VGN-Z540N doesn't have this method, so let's not fail
    to suspend just because it doesn't exist.

    Signed-off-by: Adam Jackson <email address hidden>
    Acked-by: Mattia Dongili <email address hidden>
    Cc: Len Brown <email address hidden>
    Signed-off-by: Andrew Morton <email address hidden>

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-intrepid.git;a=commit;h=7c3e04cd0e55d55d59d30854efa52d33da5819d5

SRU Justification

Impact: System can't suspend or hibernate

Patch Description: if the _DIS method doesn't exist, ignore it

Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-intrepid.git;a=commit;h=7c3e04cd0e55d55d59d30854efa52d33da5819d5

Test Case: See bug description, can be reproduced on SONY Vaio VGN-Z540

Accepted linux into intrepid-proposed, please test and give feedback here. Please see https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Bug exists also on a Gigabyte GA-8S648FX motherboard with Interpid.
In some cases Ubuntu may refuse to hibernate, others it logs me out and others it just shuts down.

Bug exists also on a VIA EPIA EN12000E with Interpid.

Looks like this bug is in FixCommited state for intrepid, can you please post if you are seeing the problem in Jaunty?

The patch referenced here is already available in Jaunty. Setting status to Fix Released for Jaunty and Karmic.

ogasawara@emiko:~/ubuntu-jaunty$ git log 6158d3a2323835546c7cf83a170316fa77b726e0
commit 6158d3a2323835546c7cf83a170316fa77b726e0
Author: Matthew Garrett <email address hidden>
Date: Wed Oct 29 14:01:03 2008 -0700

    sony-laptop: ignore missing _DIS method on pic device

    At least the Vaio VGN-Z540N doesn't have this method, so let's not fail
    to suspend just because it doesn't exist.

    Signed-off-by: Adam Jackson <email address hidden>
    Acked-by: Mattia Dongili <email address hidden>
    Cc: Len Brown <email address hidden>
    Signed-off-by: Andrew Morton <email address hidden>
    Signed-off-by: Linus Torvalds <email address hidden>

Intrepid Ibex reached end-of-life on 30 April 2010 so I am closing the report. The bug has been fixed in newer releases of Ubuntu.