Ubuntu – 12.10 blue screen, desktop bars do not load

12.10

just upgraded to Ubuntu 12.10. I can't reach the desktop, it is stuck on the blue screen, the desktop environnement does not load.
Only gnome with no effects works.

Can you help please?

config: thinkpad T400, 6 GB of Ram, graphic card: Intel Gma 4500Mhd

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

I am not sure I have not messed up lightdm / gdm previously…

edit: I just tried a 12.10 live usb version and it works fine….so it is a problem in my install for sure.

Best Answer

I had a similar problem after upgrading. You can follow what I did. Check the ~/.xsession-error logs. If you have errors similar to this: (update-notifier:2286): Gtk-WARNING **: Theme parsing error: gtk-widgets-assets.css:494:61: Unrecognised image file format , then reinstall libgdk-pixbuf2 and type the following as root user

gdk-pixbuf-query-loaders --update-cache and then reboot. If that does not suffice, install gdk-pixbuf2.0-dev and run the above command again. Reboot to see the changes. Hope your problem is resolved.

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