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 up to and sometimes over 40-50% of a CPU-core of a 2,8GHz C2D when displaying 1080p video regardless of the player used).
Hi moviemaniac,
Please attach the output of `lspci -vvnn` and `dmesg`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you're using a custom /etc/X11/xorg.conf please attach that as well.
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