Desktop and open programs visible when awaking from suspend

[meborc]

When going to suspend by closing the lid and then awaking, the desktop and all open programs/text files are visible for a couple of seconds (enough time to read what documents contain) to anyone. Then the screen unlock password is prompted.

This does NOT happen when going to suspend from the panel shutdown menu. So this MUST be connected to the way lid closing and suspend are handled.

Acer Aspire One netbook 532h-2588 with latest 11.10 updates

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-power-manager 3.1.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic i686
Architecture: i386
Date: Wed Aug 17 11:09:29 2011
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110720)
MachineType: Acer AO532h
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-8-generic root=UUID=3e95c338-be3e-4949-bc9c-03af5a974682 ro quiet splash vt.handoff=7
SourcePackage: gnome-power-manager
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/17/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.21
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: AO532h
dmi.board.vendor: Acer
dmi.board.version: V1.21
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.21
dmi.modalias: dmi:bvnAcer:bvrV1.21:bd03/17/2010:svnAcer:pnAO532h:pvrV1.21:rvnAcer:rnAO532h:rvrV1.21:cvnAcer:ct10:cvrV1.21:
dmi.product.name: AO532h
dmi.product.version: V1.21
dmi.sys.vendor: Acer
gnome-power-bugreport: Error: [Errno 2] No such file or directory