Xorg hanging problems

[Brett A. Taylor]

Hello Kubuntu users,

I am writing in hopes of getting more information about bug 51991 
(<https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/51991>) regarding the 
pseudo hanging Xorg process: the mouse moves, the keyboard is almost frozen, 
and the Xorg is hogging all the CPU. All that can be done is switching to a 
terminal, and killing Xorg.

This has been an on-going problem for me for some time. There are numerous 
reports about variations of this. And nobody seems to have a solution.

What's interesting to me, and which is what is causing me to write to this 
list, is that when I use Beryl and Aquamarine such that I'm using Beryl and 
not Kwin, I never experience these lock-ups. Also interesting, is that before 
upgrading to Fiesty, I downgraded to KDE 3.5.5 (from 3.5.6) and the hanging 
went away during this period as well. As soon as I returned to 3.5.6 with 
Feisty, the hangs continued.

Of course, this problem has been reported by non-KDE users. But it is a 
curious set of circumstances.

Any ideas anyone has would be appreciated. It's becoming very annoying to have 
to restart my X session every time I sit down at the computer.


Thanks
Brett