Peter,
I did a fresh install of Jessie with LXDE
and then installed the kernel image and headers you uploaded on my G5
(11,2) with a Quadro FX4500 Nivida card. After adding an entry in
yaboot.conf and running sudo ybin -v, I rebooted successfully to the
login screen without having to pass in any yaboot parameters to disable
acceleration. As also explained, the G5's fans did spin up and out of
control after a couple of minutes, but loading the i2c-powermac module resolved that issue.
I can also now use both 20" Apple Cinema
Displays side by side, whereas before I could only have them mirror
each other. Trying to place one monitor to the left or right of the
other caused me to be logged out of my session.
Let me know if you need any more information about the process or my system and configuration.
By the way, I happened to notice a G5 page size bug is noted on the Nouveau websites under their DRM To DOs.
http://nouveau.freedesktop.org/wiki/ToDo/Anyways, I'm super stoked the 2D driver is working. Now if I could only get 3D acceleration!
Thanks,.
Brock