[xrandr]: gnome-settings-daemon crashed with signal 5 in _XReply()

[Sven.Frings]

Gnome settings crashed after i installed myunity sometimes the screen gies black and the error apeared i use Ubuntu 12.04 Beta 1 64Bit version in virtualbox 4.1.8

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.3.91-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Wed Mar 14 00:35:39 2012
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
Signal: 5
SourcePackage: gnome-settings-daemon
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XRRSetCrtcConfig () from /usr/lib/x86_64-linux-gnu/libXrandr.so.2
 gnome_rr_crtc_set_config_with_time () from /usr/lib/libgnome-desktop-3.so.2
 ?? () from /usr/lib/libgnome-desktop-3.so.2
Title: [xrandr]: gnome-settings-daemon crashed with signal 5 in _XReply()
UpgradeStatus: Upgraded to precise on 2012-03-13 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #907052, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.