Re: 100% cpu usage instead of using hardware acceleration

[Knut Auvor Grythe <fglrx at auvor dot no>]

On Sun, Mar 06, 2005 at 10:24:40AM +0100, Leo Gürtler wrote:
> Thanks, I checked all these infos, but they do not seem to fit for my 
> situation (see below).

Okay, this proved to be more difficult than i thought :-|

> So, do I have - maybe - to delete something from MESA ? I work mostly 
> with apt-get and I cannot remove MESA without also removing all that 
> depends on  :-(

Let's see... glxgears is a fairly simple application, so we should be
able to determine this rather easily... ldd /usr/X11R6/bin/glxgears will
give you all the libraries linked in, and dpkg -S on the libraries
should give you the debian packages they come from...

  knuta:~$ ldd /usr/X11R6/bin/glxgears|awk '{print $3}'|xargs dpkg -S
  xlibmesa-gl: /usr/X11R6/lib/libGL.so.1
  libxext6: /usr/X11R6/lib/libXext.so.6
  libx11-6: /usr/X11R6/lib/libX11.so.6
  libc6: /lib/libpthread.so.0
  libc6: /lib/libm.so.6
  [...]

Here, on my amd64 system, we see it using xlibmesa-gl, libxext6,
libx11-6, libc6 and some more libc6 I didn't bother including. Does it
output something more suspicious om your system? It's my best shot at
the moment.

You could also try doing it on glxinfo to check for inconsistencies. Is
fgl_glxgears also slow?

> the ati module can be loaded into the kernel, XFree86 does not report 
> problems and still - no hardware acceleration!
> maybe something with mtrr ? (How can I find out/ fix it?) -> something 
> in menu.lst (-> grub?)

Are you using a stock debian kernel, or something you compiled yourself?
If the latter is the case, could you try apt-getting a debian kernel and
see if it helps?

Changing the AGP solution is also worth a shot. If you are using the one
from Ati, try the one from the kernel, and vice versa.

[snip seemingly correct output]
> thanks for further hints. I do not understand it as fglrx can be built, 
> loaded into the kernel, but no acceleration,

I don't actually understand it either, but I hope my wild guessing helps
out somehow ;-)

-- 
Knut Auvor Grythe