With a plugable extra seat adding device:
Using the udlfb framebuffer driver, gnome-shell crashes really quick. This results on the
login screen on the second seat usually showing the "Something has gone wrong" screen.
After upgrading to the latest mesa for F-17 from koji I managed to login once, but then my
gnome3 session crashed in seconds. Forcing gdm to run in fallback mode by doing:
ln -s /usr/share/gnome-session/sessions/gdm-fallback.session /var/lib/gdm/.config/gnome-session/sessions/gdm-shell.session
And then running an XFCE session works fine.
This is a rather bad issue, making the (really cool) out of the box experience when using a plugable device
completely non working, therefore I'm nominating this as an F17Blocker.
mesa-8.0.1-7.fc17 has been submitted as an update for Fedora 17.
mesa-8.0.1-9.fc17 has been submitted as an update for Fedora 17.
mesa-8.0.1-9.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.