Re: how can i improve open gl performance on a tibook 400?

[Shawn Powers <spowers@inland.k12.mi.us>]

I'm remembering more and more. :)  Yes -- you need to have ati (r128)
you can compile it in, or just modprobe it (if you've allowed for
that).  Another key is that to get acceleration (3d accel that is) I
had to NOT use agpgart.  I read a lot that I needed it -- but I needed
to remove it for it to work.

my XF86Config-4 is available here:
 http://hspowers.inland.k12.mi.us/XF86Config-4

using "ati" or "r128" makes no difference, because "ati" automatically
detects what to use.

Again, I have an iBook -- but I think the video hardware is identical.
 (Just different resolution, and I'm clueless in that regard)

-Shawn

debian-powerpc@lists.debian.org wrote:
> cheers for the tips. I reconfigured xfree and chose the fbdev xserver
> driver. I still only got 150 ish fps from glxgears. glxinfo says
>
> ...snip...
> direct rendering: No
> ...snip...
>
> I have read that i need this to be enabled for acceleration to take place.
> How can i enable it? I tried choosing the r128 driver from the dpkg
> xserver menu instead of fbdev but x fails to start (i believe it said
> 'cannot read V_BIOS')
>
> Am now trying to recompile the kernel with the r128 drm module and agpart
> enabled. 
>
> cheers
>
> matthew
>
>
>
> On Sat, 18 Jan 2003 10:43:24 -0500
> Shawn Powers <spowers@inland.k12.mi.us> wrote:
>
> > ahh -- there are more detailed messages about what I had to do to get 
> > opengl working on my ibook (with a rage128) but basically, I had to set 
> > my colors to 16bit rather than 24 bit...  that was the deciding factor. 
> >   If you have a rage128 you DON'T need dri-trunk or anything like that, 
> > and honestly, that whole bit confused me as well.
> >
> > you can just run dpkg-reconfigure xfree86  (that's not the actual 
> > package name, i don't remember off-hand, and I'm stuck on a windows 
> > machine right now)  It'll ask you a bunch of stuff, you want 16bit 
> > color, and you DO want it to add the DRI part.  after that, restart 
> > xwindows and run glxinfo, it should say direct hardware rendering = yes. 
> >   Also, you can run glxgears, and those puppies should be spinning like 
> > mad (300 fps or so)
> >
> > Good luck, if you can't figure it out -- I'll be happy to help more.  It 
> > took me a long time to get it, hopefully my struggles will help you. :) 
> >   (The big key was the 16 bit color)
> >
> > -Shawn
> >
> >   
> listmaster@lists.debian.org