when in locked screen screensaver freezes with mouse movement

[Paul Childs]

Binary package hint: gnome-screensaver

Using fspot photos for the screensaver. After the computer is idle for a while the screen locks and gives the screensaver. A while later it goes blank all as expected. If I have waited long enough for the screen to go blank a move of the mouse will prompt for the password as expected. If I do this when the screensaver is active, however, the screen freezes and does not display the password prompt. Cntrl SysRq k works to exit but I loose all unsaved data.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-screensaver 2.30.2-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Mon Apr 4 16:29:15 2011
GconfGnomeSession:
 idle_delay = 5
  /desktop/gnome/session/required_components:
   windowmanager = gnome-wm
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_US.UTF-8
 LC_MESSAGES=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-screensaver
UpgradeStatus: Upgraded to natty on 2011-03-29 (5 days ago)
WindowManager: gnome-wm