Comment 22 for bug 129029

I've used the temporary work-around of removing the Gutsy gnome-session 2.19.90 and installing the Feisty 2.18.0 version.

In my previous comment I mistyped the version - it should of course have been 2.18.0, not 2.1.18!

1. Download the Feisty gnome-session v2.18.0 package
2. Uninstall the Gutsy gnome-session v2.19.90 package
3. Install gnome-session v2.18.0
4. Edit the apt preferences file to pin gnome-session so it won't be accidentally updated

At the GDM log-in prompt *before* logging in, switch to a virtual terminal by pressing Ctrl+Alt+F1, and log-in the do the following:

$ wget http://archive.ubuntu.com/ubuntu/pool/main/g/gnome-session/gnome-session_2.18.0-0ubuntu3_i386.deb
$ sudo apt-get remove gnome-session
$ sudo dpkg -i gnome-session_2.18.0-0ubuntu3_i386.deb
$ sudo nano /etc/apt/preferences

Add the following 2 lines then save the file and exit with Ctrl+X:

  Package: gnome-session
  Pin: version 2.18.*

Put ubuntu-desktop back:

$ sudo apt-get install ubuntu-desktop

Now switch back to the GDM log-in screen using Ctrl+Alt+F7 and log-in. You should hear the login sound.