Installing old ATI Rage Pro 128 video drivers from Tiger into Leopard on G4 Cube
First I checked the system profile on the Apple menu, but that showed that the graphics card was correctly recognised as ATI Rage Pro 128
Just in case, I checked the /System/Library/Extensions folder. There were no ATI Rage drivers there at all!
I hopped on over to OSX86 at Insanely Mac and read their forums, remembering my Hackintosh days of dragging drivers over and found that it was a trivial task.
Since I used Archive and Install so I had my whole Previous System folder available, I mosied on over to:
and grabbed all the ATIRage kexts bundles and plugins I could find. I spotted the ATIcellerator, too so I brought that over to/System/Library/Extensions folder, also.
I had to change the permissions of the files, delete the old extensions cache and reboot.
This needs to be done as root (using sudo) so be careful, a mistyped command will be executed without complaint by your computer, potentially hosing your entire system.
In terminal, type:
type your password at the prompt and you are now root. You can seriously shag your system up if you’re not careful. So be careful 🙂
chown -R root:wheel /System/Library/Extensions/ATIRage*.* rm -rf /System/Library/Extensions.mkext reboot
After the reboot I found that my system was much, and I mean that honestly, more responsive! The slow screen updates, windows resizes, dragging, Safari page scrolling, everything was much faster.
I imediately ran X Bench to see if the results reflected the performance differences I felt and here are the results:
A convincing win for Leopard with the Tiger driver installed! It is a shame that OpenGL performance is not affected, however.
Just to remind us, let’s have a look at Leopard running with Tiger’s ATI driver versus Tiger itself.
This is extremely interesting. It shows us surprisingly that far from having an overhead, Quartz graphics actually show a very slight increase in performance compared to Tiger (averaged over three runs)! Of course, X bench is fickle, so take this with a pinch of salt.
Unfortuantely, the OpenGL (spinning squares) test shows us that it not receiving any benefit from the new driver. That’s too bad.
Well, I can now reverse my original post with the following shout:
I CAN NOW HEARTILY RECOMMEND LEOPARD FOR ATI RAGE USERS WITH >1GB RAM AND A DECENT CPU!