Recently DRI3 rendering infrastructure got availabe on big endian machines (klick). This will be part of the upcoming mesa-17.2 release. Hopefully using DRI3 will fix some of the graphics glitches we MorphOS-dual-booters are experiencing on the Linux side.

I gave it a try and built mesa-git on the Gentoo side of my G5. DRI3 got enabled and the desktop was actually usable! Unfortunately it took only a while to the first GPU-freeze. The r300-driver running my Radeon 9650 is known for not be too PPC-friendly. So I filed a bug on the Xorg-List. On the good side the X1000/X5000-Folks reported faster framerates for the already working cards.