[clug] Radeon 9200 and Xorg suckage

Michael Still mikal at stillhq.com
Tue Apr 4 23:55:14 GMT 2006

Tim Potter wrote:
> On Tue, Apr 04, 2006 at 09:04:30AM -0700, Michael Still wrote:
>>I just picked up a Radeon 9200 PCI card for my MythTV machine, and I am 
>>using Xorg with Drapper Drake (Ubuntu). I've tried both the ati driver 
>>(which loads the radeon driver), and the radeon driver, and they both 
>>consume about 80% of the CPU while the machine is playing back video.
>>This is a reasonably grunty machine, and I'd really like the CPU back. 
>>Have other people seen problems like this? I can't find any 
>>documentation that suggests that the ATI binary drivers will fix it, but 
>>I am tempted to give it a go. Does anyone know if the binary drivers 
>>work better at video playback?
> Just FYI, I am getting about 10% CPU usage for playback on a Athlon 3000+ 
> with a NVidia 6600, so 80% CPU sounds like something is badly wrong.
> This is using the xv video extension.
> I haven't been able to get the xvmc driver going so there is supposed to
> be more gains possible.

Is there a canonical way for me to tell if the driver / card supports 
XV? The MythTV pages (http://www.mythtv.org/wiki/index.php/XvMC) suggest 
it is not supported for Radeon cards.


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