[clug] Radeon 9200 and Xorg suckage

Michael Still mikal at stillhq.com
Wed Apr 5 00:23:26 GMT 2006

Christopher Yeoh wrote:
> At 2006/4/4 09:04-0700  Michael Still writes:
>>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?
> I have Radeon 9600 card and use the binary drivers because it supports
> the TV out on the card. From memory the open source drivers were ok
> (except for lack for TV out). 
> Have you tried testing with xine or mplayer?  From the CPU usage it
> sounds like its not using the Xv support. If so, its possible its a
> MythTV configuration issue, but testing with xine/mplayer is the
> easier way to debug what is the problem.

Cool. I'll give that a try too when I get home.

> btw if you're trying to play HDTV then you can expect the CPU load to
> be very high.

Hmmmm. I'm playing standard definition TV, but on a 1920x1200 monitor... 
Does that count as high def?


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