AS I type, i’m setting up an Ubuntu server to use a virtual server host on my test rig. Slight problem though, after getting bored/frustrated with command line configuring (odd because usually command line is my preference) I got lazy and decided to install Gnome and virt-manager. All good, so I thought, I added xrdp to allow me to RDP in but got a message “failed to load session ubuntu“.
A little digging on the internet and the solution which worked for me was to install unity-2d:
sudo apt-get install unity-2d
Then i just restarted GDM:
sudo restart gdm
And I can now log in via RDP to my Ubuntu 12.04 server!
Hope that helps someone.