> I've just tried two glxgears at the same time and I am seeing utterly 
> strange behaviour with two glxgears running, where sometimes if I move one 
> it will leave bits of gears behind (sometimes a whole frame), and sometimes 
> corrupt my desktop background image (and I mean really corrupt; not a 
> redraw error) with bits of white, indicating a write into an off screen 
> area; the bitmap is tiled and if I refresh the whole desktop the corruption 
> shows up in all of them; I have to upload a new background image to make it 
> go away.

This is the cliprect issue...

> Also if I leave them still only one of the glxgears windows will animate at 
> once; a bit of animation from one, with nothing from the other, and so on 
> back and forth pretty much randomly (at first I thought it might be related 
> to window focus, but it's not).

This is just coarse scheduling granularity - it's always been like that.

Keith





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