computer fails to fully wake after suspend, requiring full power cycle to resurrect

[Alex Peters]

If I select "Suspend" from the Power menu, my computer suspends as expected.

When subsequently pressing the Power button on the front of the computer to wake it, the computer's hard disks power up but the monitor (and hence the computer in full) does not.

A press of the hardware Reset button on the computer appears to make the computer reset, but the computer does not subsequently progress to the BIOS POST screen--at this time, it hangs/freezes in the same manner as when first being woken from suspension. It is actually necessary to hold down the Power button such that the computer is forced to switch off fully, and then turn it on again.

/var/log/pm-suspend.log (attached) makes reference to the suspend being performed, but doesn't appear to report anything else after going into suspension. I don't know what other log files may be relevant, but am more than happy to provide any that are deemed to be.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pm-utils 1.4.1-9
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Fri Jun 1 20:09:03 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pm-utils
UpgradeStatus: Upgraded to precise on 2012-03-04 (89 days ago)

[Serge Hallyn (serge-hallyn)]

Thanks for reporting this bug. Please reply if it is still an issue.

[Launchpad Janitor (janitor)]

[Expired for pm-utils (Ubuntu) because there has been no activity for 60 days.]