After the update neither my desktop (Asus) nor my laptop (HP) respond to the shut-down, log off or restart commands in the right top tool bar.
How do I fix the issue?
Had the same problem and found out that even "shutdown" command from terminal didn't help much either.
I am using also Cairo dock and found out that if I try to restart or shutdown from Cairo, it does.
Silly may seems but for me worked.
Same problem after upgrading from 13.04 to 13.10 on an Asus desktop running Unity. The problem occurs only after SUSPEND/RESUME, either manual SUSPEND via the Shutdown menu (upper right corner of screen) or by the System Settings/Power suspend timeout after 30 minutes (current SUSPEND setting).
Starting a terminal session and running 'sudo reboot' or 'sudo shutdown now' takes the O/S into single user mode (I believe). A Control-D continues the process a little further. At that point, a Control-Alt-Delete reboots to the login screen where the Shutdown menu (upper right corner) is once again available to restart or shutdown.
Works when you press hardware power button. Then menu will be shown and here you can restart, shut down, and suspend
sudo shutdown -h now
, pressenter
and put the password. Is this working?