Comment 0 for bug 1016412

I am running gnome-shell on 3 Machines:
1 prue Intel Laptop
1 Intel/Nvidia Optimus (use only Intel graphics)
1 AMD/Nvidia (nvidia proprietary driver)

On ALL Machines the desktop is frozen very often if I login nearby the system startup (in cause of autologin for example).
If I wait a while on the loginscreen after the system been started (no autologin) and then login to the gnome-shell everything works fine.

After the desktop is frozen I can:
* Move the mouse
* Switch to a console via Alt-Fx
* Restart lightdm on a console and everything works fine
* Switch back to the desktop with Alt-F7, Desktop is black, mouse is movable

I take a look to all logs an found nothing.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-shell 3.4.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
Uname: Linux 3.2.0-25-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
Date: Fri Jun 22 09:22:49 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)