I have the same experience after upgrading from 8.04 to 8.10 .
It is impossible to shutdown the system through gnome, but it works with gdm.
I did recognize that behavior two times, after upgrading a fresh install
in virtualbox and on a normal computer.
Phil
--
Computer does not power off
** Changed in: ubuntu
Sourcepackagename: meta-gnome2 = None
--
Computer does not power off when choosing Shut Down from Shut Down panel button
https://bugs.launchpad.net/bugs/251374
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to