Shutdown stuck at Ubuntu logo

I've installed my Ubuntu11.10 yesterday. I updated it and now when i go to shutdown it stucks at Ubuntu logo (the one with the white small balls). I waited 20 mins and nothing, i always have to shutdown by holding the power button. Any suggestions? Thanks :)

Solution 1:

As I noted in comment, in my case it was related to bug 875959, so a network-manager issue.

Try this command before shutting down:

sudo service network-manager stop

Worked for me.

Solution 2:

Do you have mounted samba shares? I've found if I don't unmount them before I shutdown or reboot, my system hangs.

Solution 3:

Having this problem also very rarely. Seems it shows up after certain updates have been installed. If it happens, I'm just giving it some time just to be on the safe side (took a long time for the first shutdown after installing gnome3/gnome-shell), then I reboot with Alt Sysreq REISUB . Next shutdown(s) are usually fine again after that.