unable to login after getting system update of X11 in fedora 11

[Adam D. Ligas]

On 09/11/2009 05:08 PM, Sharpe, Sam J wrote:
>>>> Same problem here after those updates. While the problem is not fixed, try
>>>> to change to tty2 at the login screen, kill your X session and then start it
>>>> again. After this I was able to login.
>>>>
>>> thnx for you reply ......   I dont need to change tty2 .... it work on the
>>> default tty  ....but I need to try 10 to 15 times then and then I can login
>>> ...   :-(

>> Try booting the previous kernel, if it goes away you may have the bug
>> I've just filed: https://bugzilla.redhat.com/show_bug.cgi?id=522863

> Do any of you use Gnome / Desktop Effects / Compiz?
> I do and I just hit this when I rebooted - disabling Desktop Effects
> got me back into my desktop.

I commented on bug as well - I think I have the same thing.  If I kept 
trying over and over it would eventually "catch" and let me in, but then 
I would have a bunch of gnome-panels running and eating up a ton of CPU. 
  Killing those panels seems to restore things to a more "normal" state.

However, I *WAS* running Desktop Effects.  Disabling that per Sam's 
comment seems to have "resolved" the issue.  I was able to login on the 
first shot and I have no extraneous gnome-panels, keyring-daemons, and 
other such things.

At least the machine appears to work as normal again, for the time being.

Do we have any idea if this is a kernel bug, xorg bug, or both?

- Adam