ubuntu-x-swat team mailing list archive

[Klaus Doblmann <klaus.doblmann@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-ati

Read this on Phoronix:

"If using the latest ATI open-source driver Git code for kernel mode-
setting, there may be slightly better X-Video support without any visual
slowdowns/problems. Pauli Nieminen has changed around the code so that a
video buffer is allocated in the GTT (Graphics Translation Table) to
provide faster memory operations that haven't been accelerated by KMS.

The patch that provides the performance boost to X-Video under ATI
kernel mode-setting can be found on the xorg-driver-ati mailing list and
has since been committed."

http://lists.x.org/archives/xorg-driver-ati/2010-February/013827.html

This would be great if it could be integrated/backported for Lucid,
especially since XV-performance with the free drivers on Radeon
2600XT/PRO cards is really, really bad right now (Xorg using nearly
80-90% of a CPU-core of a 2,8GHz C2D when displaying 1080p video
regardless of the player used).

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

-- 
please backport "Allocate Xv buffers to GTT." from upstream for lucid
https://bugs.launchpad.net/bugs/524548
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