On Sam, 2002-09-28 at 00:33, christophe barb� wrote: > On Fri, Sep 27, 2002 at 05:54:57PM -0400, christophe barbe wrote: > > It works significantly faster for opengl based display. But doing my > > test with xscreensaver I can see that a few 2d screensaver are slower. > > It looks like they are no more double-bufferized or the image chaged is > > not in sync. For example "Spotlight" is slower and you can see the spot > > appers in a few scan. > > To get drm-trunk installed I had to rebuilt the kernel without r128.o and > radeon.o because they come with drm-trunk. > > The diff between the two X log is small. One difference is that AGP is > said "not available" in the second case and then fall back to PCI when in > the first case AGP is never mentionned. > Also in the second case agpgart is not loaded and if I load it manually > before, I see no differences. > > I am missing something to get AGP used?
You need to load agpgart before the radeon kernel module. I have /etc/modutils/drm with pre-install radeon modprobe agpgart for that. > Can this explain the significant slowdown for 2D? Possibly, PCI GART seems to be very slow on a TiBook III, I suspect that's related to the L3 cache. -- Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast
