Finally accelerated
After nearly 5 years of struggle, I managed today to get my graphics card (A Radeon IGP 320M chip) 2D and 3D accelerated today under Linux. I needed to install a custom ACPI DSDT (from http://acpi.sourceforge.net) into my kernel, which is fairly easy in Ubuntu Dapper (simply drop it into /etc/mkinitramfs and reconfigure the kernel package). This fixes a couple of problems and most importantly avoids instant lockup when starting DRM.
Next I compiled and installed Mesa and DRI from CVS sources following this guide. I had to fiddle a bit with the correct dirs, and voila! OpenGL works and even 2D graphics is much smoother now (due to the use of AGP I guess).
I hope the distros will pick this up soon so that I can live without these hacks. Yay, now I can use Google Earth and play Quake without making my CPU heat up like hell 
June 25th, 2006 at 2:19 pm
I don’t get this; I though ACPI is supported in the 2.6.x tree already? What do these patches add? And why are they not included in the mainstream kernel source?
June 30th, 2006 at 5:29 pm
ACPI is already supported. However, a couple of BIOSes are buggy, and acpi.sf.net provides many corrected DSTDs for those buggy BIOSes. For me it helped with DRM and some issues with the USB ports. I don’t know why this isn’t included in the mainstream kernel, best ask the kernel devs or the folks from acpi.sf.net.