rollbacking IOPCIFamily and AppleACPIPlatform kexts on Yosemite to solve graphic issue .. HOW?

[bilbo]

Hi everybody.

 

Thanks to gentle people of this forum I could solve an important graphic problem on Mavericks. Now , I want to update my system to Yosemite , and I have the same problem. But I don't know how adapt the tip to solve it.

 

That is the problem (identical in Mavericks and Yosemite):

 

-So far, I have running Mavericks (10.9.4) with clover. I have a Quadro K5000, fully supported, flow and stable. As I said, thanks to the help of this forum. The issue was a kind of problem with dual cpu and quadro cards. The solution was rollback IOPCIFamily and AppleACPIPlatform kexts from 10.9.0.. It worked perfect.

 

-Now: I have a fresh install of yosemite using Clover. I use the same config.plist with options,smbios and patches tested and working with maveriks. So, no problems with clover and install process.

Exactly as with Mavericks, when I boot without -x flag , yosemite has a graphic problem , running slow, very slow and laggy .

 

-Ok,  I have to use the same tip. But...... How can I rollback these kexts? I tried to use the same kexts used in mavericks, but it didn't work. Boot freezes.

 

Thanks in advance.