LCA: Two talks on the state of X

I completely failed to realise that Xv could turn the incoming video into 
textures and slam it at the video card. Obviously if it did that things 
would be about as fast as slamming it at the video card without 
texturizing it first, with the advantage that modern cards are designed to 
render big textures fast.

And, yes, if the thing's doing copies performance will suck. From your 
wording it sounds like it's not something fundamental to the hardware :) 
When I get another machine to use as a desktop box later this year (so can 
afford to restart X on this one without losing all my working state) I 
might have a look at that. Someone else will probably get to it first, 
though...