[mythtv-users] Cheap Possible Frontend - performance problem

[Brian Wood]

On May 12, 2006, at 6:02 AM, Clyde Stubbs wrote:

> On Mon, May 08, 2006 at 04:38:29PM -0400, dick at photoclerk.com wrote:
>> Yeah, HD won't work, but 480i works great.  I've got three front- 
>> ends in
>
> Ok, inspired by these messages, I bought a Compaq Deskpro EN from  
> eBay,
> paid the expected $80 (but Aussie $, so even better). I have installed
> Mythdora on it (and upgraded my backend to .19) and it's all  
> working, but
> playback is a little jerky. CPU usage is running at about 72%, so I  
> suspect
> that it's dropping frames.
>
> Are there any suggestions on making this work better? I have seen some
> references to using XvMC with the Intel 815 integrated video, but  
> I've turned
> that on, and it doesn't seem to be being used - the xorg.log says that
> XvMC is on, but mythfrontend -v playback says it's not supported.
>
> Suggestions anyone?
>
> TIA.
>
> mythfrontend output:
>
> 2006-05-12 20:33:57.150 VideoOutputXv Error: XvMC output requested,  
> but is not supported by display.
> Xlib:  extension "XVideo-MotionCompensation" missing on display ": 
> 0.0".
> 2006-05-12 20:33:57.160 XvMCSurfaceTypes::find(w 768, h 576, chroma  
> 1, vld 0, idct 1, mpeg2, sub-wid
> th 0, sub-height 0, disp, p<= 61, 610 <=p, port, surfNum)
> 2006-05-12 20:33:57.161 Trying XvMC port 61
> Xlib:  extension "XVideo-MotionCompensation" missing on display ": 
> 0.0".

What's the CPU speed, amount of RAM and video hardware ? Are you  
running SD or HD video?

You first have to figure out what performance you can reasonably  
expect from the H/W, then see if it is living up to its potential.