[mythtv] opengl (revision 14478) with new ati-driver 8.41.7

Daniel Kristjansson danielk at cuymedia.net
Wed Sep 12 20:58:54 UTC 2007


On Wed, 2007-09-12 at 22:45 +0200, Gernot Pansy wrote:
> i currently bought an msi board with an integrated ati grahic chip (x1200).
> the current driver can not handle xvideo for the onboard chip but should 
> handle opengl rendering.
> 
> but i get this error on playback:

> 2007-09-12 22:36:36.149 GLCtx: Created window and context.
> 2007-09-12 22:36:36.150 GLCtx: Could not make context current.
> 2007-09-12 22:36:36.150 GLCtx: GLX Version: 1.2
> 2007-09-12 22:36:36.150 GLCtx: Direct rendering: Yes
> 2007-09-12 22:36:36.151 GLCtx: OpenGL vendor  :
> 2007-09-12 22:36:36.151 GLCtx: OpenGL renderer:
> 2007-09-12 22:36:36.151 GLCtx: OpenGL version :
Do you have "GLX" in your xorg.conf? It looks like Xorg is just
implementing fallback software OpengGL for you.

> 989 frames in 5.0 seconds = 197.800 FPS
Big problem, you should be getting at least 1000 fps, 2000 to 8000
is normal for an OpenGL card with a proper Xorg configuration.

> 2007-09-12 22:36:36.152 GLCtx: Max texture size: 512 x 512
> 2007-09-12 22:36:36.154 GLVid: Viewport: 1280x720
You need at least a 2048x2048 texture size for a 1280x720 screen.
i.e. You need a texture size at the next power of two above the
largest dimension of the viewport and video. I think we're simply
not finding any hardware OpenGL support and the ATI chip probably
does support early 1990's era texturing. :)

-- Daniel



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