Comment 24 for bug 869408

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Bo Nygaard Bai (bai-v) wrote : Re: gnome-shell hangs when switching to a running VMWare Player Window in Activities menu

Just to elaborate on the quick fix for those using Kerberos.

As has been posted by several others, you can drop to the console and kill the gnome-shell process, start a new gnome-shell and return to your desktop.

If you are using Kerberos you should remember to set the KRB5CCNAME environment variable to keep all your windows in the same kerberos session.

The pattern becomes:

(CTRL-ALT-F1 to the console and login)

killall -9 gnome-shell
export $(xargs --null --max-args=1 < /proc/$(pidof gnome-session)/environ | grep KRB5CCNAME=)
gnome-shell -d :0

(CTRL-ALT-F7 to get back to the desktop)

...and all of your gnome-session windows will keep using the same kerberos credentials cache.