Comment 2 for bug 137401

I can confirm this. I run Ubuntu, but i also get this problem when i start Kate or K3b for example.
Xgl uses about 99% of my cpu when resizing so it's definitly got something to do with the new hardware based drawing stuff that's in Gutsy.

Starting compiz does indeed solve the slowness but changes my theme and enables all kinds of eye-candy i'm not interested in.
Maybe the bug description isn't accurate and it might very well be a duplicate but i'm wondering why we are the only two people having these problems.

I'll be happy to help debugging this problem.

Also using the restricted Nvidia module by the way.