Suspend to RAM freezes system, hibernate fails.

[ceylon]

Since my update to Kubuntu karmic beta, my Dell D630 laptop has not been able to suspend or hibernate. When I try to suspend to RAM, the system freezes, does not respond to SysRq, and needs a hard reboot. It does seem to lock the screen, but never actually suspends.
I have this problem with versions 2.6.31-11 and 2.6.31-14. I have never had this problem in Jaunty (2.6.28-15 and older) or Intrepid.
Hibernation (to disk) also fails and the screen goes blank, but the system still appears to be responsive to SysRqs. This bug is also new in 2.6.31-*.

ProblemType: Bug
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: lesley 2535 F.... pulseaudio
                      lesley 2539 F.... kmix
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe9fc000 irq 21'
   Mixer name : 'SigmaTel STAC9205'
   Components : 'HDA:838476a0,102801f9,00100204 HDA:14f12c06,14f1000f,00100000'
   Controls : 25
   Simple ctrls : 16
DKDisksMonitorLog: Monitoring activity from the disks daemon. Press Ctrl+C to cancel.
Date: Mon Oct 19 14:17:08 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=e826d202-19f9-45d7-baed-f1135e684479
HotplugNewDevices:

HotplugNewMounts:

MachineType: Dell Inc. Latitude D630
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=6e987148-4877-495f-909f-c1246ab4ba96 ro quiet splash
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=C
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-14-generic N/A
 linux-firmware 1.24
SourcePackage: linux
Symptom: storage
UdevMonitorLog:
 monitor will print the received events for:
 UDEV - the event which udev sends out after rule processing
Uname: Linux 2.6.31-14-generic x86_64
WpaSupplicantLog:

XsessionErrors: (polkit-gnome-authentication-agent-1:2575): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
dmi.bios.date: 07/23/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 0KU184
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd07/23/2007:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn0KU184:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D630
dmi.sys.vendor: Dell Inc.

[David Tombs (dgtombs)]

Marking as non-duplicate of bug #417842 as symptoms are clearly different.

[ceylon (ceylon)]

A clean install of karmic on my machine solved the problem, both suspend and hibernate work now.

[ceylon (ceylon)]

bug does not occur on clean install.