As far as what I can see, here are the information I've collected about 9.0 and i845:
- official Linux support for the dma stuff of i845 appeared sometime in the 2.5.something branch - it was hacked together in our 2.4 for 9.0 by Juan, it worked sometime in the beta/rc period, but broke again for the final :-( - so the 9.0 has a very poor disk performance with i845 (something like 2 MB instead of 40 MB) - we need to issue a fixed kernel about that, Juan will work on it but now he's busy with acpi stuff (or apic, I always mix them, thanks for the anagram), he'll do that next -- Guillaume Cottenceau - http://people.mandrakesoft.com/~gc/