Screen goes black when unattended and does not return

Binary package hint: xorg

I have a recurring problem on Lucid - reproducible two different computers.

I lock my screen or/and leave my computer unattended. The screen goes black or displays "Out of range" and does not come back to the desktop, or to the password prompt when I move my mouse or type on the keyboard. I still have ssh access to the box.

These computers are not are set to suspend, and even if they were to suspend I would not be able to access them through ssh. I believe this is an issue with gnome-screensaver, gnome-power-manager or xorg.

Also see the following bugs for useful apport information:
Bug #547166 (gnome-screensaver)
Bug #547167 (gnome-power-manager)
Bug #547169 (xorg)

ProblemType: Bug
Architecture: i386
Date: Thu Mar 25 14:56:10 2010
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+3ubuntu1
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-17-generic root=/dev/mapper/hostname-root ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
SourcePackage: xorg
Uname: Linux 2.6.32-17-generic i686
dmi.bios.date: 06/05/2006
dmi.bios.vendor: Intel Corp.
dmi.bios.version: MQ96510J.86A.0372.2006.0605.1717
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DG965MQ
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD37419-102
dmi.chassis.type: 2
dmi.modalias: dmi:bvnIntelCorp.:bvrMQ96510J.86A.0372.2006.0605.1717:bd06/05/2006:svn:pn:pvr:rvnIntelCorporation:rnDG965MQ:rvrAAD37419-102:cvn:ct2:cvr:
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-17-generic