My Precise Pangolin sometimes won't shut down - the screen is black with text on it. Mostly last line says something like
stopping winbind deamon (sometimes also virtualbox, which is above winbind daemon;)
Edit: sometimes the last line says
running unattended updates.
And it stays like this for about ten miutes. Then I usually hold the power button for more than 5 seconds to shut it down. It's very unpredictable. Sometimes the computer shuts down without problem and sometimes it hangs.
I've tried many ways to shut it down: HW button, panel applet,
sudo shutdown -h now,
sudo halt, etc. Even i tried
sudo reboot or
restart from panel applet. They also have this problem. Sometimes it works correctly. But every method named hung at least once on the same (damned) line.
FUJITSU SIEMENS LIFEBOOK E8310,
Intel Core2 Duo T7300 @ 2.00GHz,
GPU: Mobile Intel(R) 965 Express Chipset Family
Ubuntu 12.04.2 32bit, 3.5.0-41-generic kernel (but it did it on older kernels and 12.04.x systems too).
Any ideas what should I try next?