logoff Xorg problem

[Dario Lesca]

Hi, I have install F7 on my Notebook yesterday, this HP NoteBook:

> http://smolt.fedoraproject.org/show?UUID=c020ea57-537e-43e0-b458-805ed2b982a5

When I close my GDM session (logoff) the monitor is blocked and If I
press the CTRL+ALT+BS or F1 none happened.
I must login via SSH from another PC and kill Xorg process to come back
to login screen.

If I logon with root, this problem do not happened, when I logout the X
session is close without problem.

Then system is up to date.

To my user I have enable the Desktop effect, for user root no, the
problem happened also if I disable desktop effect.
If i work without desktop effect (compiz) the problem not happened and
logout work great.

Is a compiz problem? is possible resolve it?
Is this a know problem?
there is a solutions?

Many thanks to all.
-- 
Dario Lesca <d.lesca at solinos.it>