cannot suspend screensaver

xdg-screensaver suspend [window id] won't suspend the screensaver since 12.10.
worked well till 12.04. and since I cannot suspend the screensaver via syssettings (https://bugs.launchpad.net/bugs/1062166) there is no possibility to suspend it at all..

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xdg-utils 1.1.0~rc1-2ubuntu6
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Sun Oct 28 14:20:59 2012
InstallationDate: Installed on 2012-01-25 (276 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: xdg-utils
UpgradeStatus: Upgraded to quantal on 2012-09-17 (40 days ago)