Computer does not go into suspend mode properly.
Selecting suspend causes hard disks and screens to power off but the fans still run.
The system will then not wake-up from this state and I have to hit the reset button on the case or dis/re-connect the power.
FYI: Same system does also freeze from time to time (freeze = become totally unresponsive, screen will stop updating and system will not respond to mouse & keyboard), seems to happen most often when using the update manager - but also happens sometime when viewing flash things in firefox. So it may be the graphics card or the network drivers. I, perhaps, have an uncommon setup with the nvidia card: I am using xinerama across 1 analogue and 1 DVI screen.
ProblemType: KernelOops
Annotation: This occured during a previous suspend and prevented it from resuming properly.
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/share/apport/apportcheckresume
Failure: suspend/resume
InterpreterPath: /usr/bin/python2.6
MachineType: System manufacturer System Product Name
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-11-generic 2.6.28-11.36
ProcAttrCurrent: unconfined
ProcCmdLine: root=UUID=4c2755c9-b0aa-45e5-873b-6c56c082b579 ro xforcevesa quiet splash
ProcCmdline: /usr/bin/python /usr/share/apport/apportcheckresume
ProcEnviron: PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.28-11.36-generic
SourcePackage: linux
StressLog: Error: [Errno 2] No such file or directory: '/var/lib/pm-utils/stress.log'
Tags: resume suspend
Title: [System manufacturer System Product Name] suspend/resume failure [non-free: nvidia]
UserGroups:
The "FYI" about the system freezing is probably the issue being tracked in bug: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/157777 - from reading around that it appears to be the combination of dual-core amd64 + nvidia + network causing the problem.