fixed in rawhide.

The Xv bugs are still there.  This is a tracker bug to note that it's something
that we need to make sure is fixed down the road.

Traditionally, the GX pitch must be a power of 2 based to allow us to compress
the data to limit bandwidth usage when we send the video to the video processor.
 That worked out to a pitch of 8192 when the OLPC board was in 1200x900 mode -
using up 7.6 of the 8MB of memory available.  Thats why video wasn't working in
Xv mode - the Xv driver couldn't allocate the offscreen memory it needed. 
Luckily, when compression is turned off, we are free from the power of 2
requirement. 

Commit 38f3d21beba13daba4844a129f3c268b5f291fb1 in the xf86-video-amd driver on
freedesktop.org adjusts the pitch to a sane value when compression is turned off
in the xorg.conf file.  When we make the pitch linear, that saves us 3Mb -
giving us plenty of room for Xv to do its thing.

Apply the patch, and set option "NoCompression" "true" in the xorg.conf.

Jordan fixed this upstream in the amd driver.