Is ATI/OpenGL acceleration working?

Ken Siersma siersmak at ekkinc.com
Tue Aug 1 21:22:57 UTC 2006


dave_abrahams wrote:
> direct rendering: Yes
>
>
>   
Good.  AFAIK, that means that acceleration is working properly. 

So I have to wonder if you have more reason to think that OpenGL is not
working.  I wouldn't say that screensavers soaking up CPU is indicative
of OpenGL not working properly.  Non-OpenGL screensavers take up CPU
too.  On machines where I can't spare CPU, I set the screensaver to
blank screen.

On my Radeon Mobility 9200 I was seeing FPS around 200 with
fgl_glxgears, but about 1000 with glxgears.  I wonder if you see
approximately the same ratio of FPS.  .

Although, depending on the model of your video card, I *think* the X
server may be able to enable direct rendering through the use of the
open source radeon or ati driver (I think they are actually the same
nowadays).  Therefore, I'd double check that you have 'Driver "fglrx"'
in the "Device" section of your /etc/X11/xorg.conf file. 

-Ken

-- 
Ken Siersma
EKK, Inc.
http://www.ekkinc.com





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