Yosemite - Amd 270x black screen issues

[JustDhan]

Hi guys, sorry for my english.

 

PC Component:

Sapphire 270x Dual x 4gb ( With HDMI output )

Amd fx 8350

8gb Ram

Asrock 990fx extreme 3

 

So the problem is this:

First i had a Hackintosh (Mavericks)

I used it for videomaking and other video thing...

Now i want to upgrade Final cut to the last version.

For do that i MUST install Yosemite.

So i tryed to install but i have one issue.

I think is graphic card

So: I installed yosemite, try to boot it with CHAMALEON with varius bootflag: -v npci=0x2000

When I boot the os, after verbose the monitor go off and it stay so.

 

If I try to boot with ( -v -x npci=0x2000 and GraphicsEnabler=No ) It boot with safe mode and without Graphics acceleration.

So I tryed to boot with clover and Amd kext, but after verbose the monitor is black with cursor.

How i can boot with Graphics acceleration? Someone have any solution?

Thanks (Y)

[copil]

Hello.

Try with the last version chameleon, or better clover.

 

What is the complete ID?

Check my signature: r9 270x guide by ludox.

[JustDhan]

Hi, 

I don't know what ID you speak, sorry O.o,

But I checked your guide , now i am re installing yosemite, tomorrow i will try your guide from safe mode.

Thanks

[domini99]

I think he means the vendor/device ID

When you still have windows installed you can find them this way:
Or atleast this is what worked for my audio card.

 

Go to Device Manager,

right click the device you want the id's from, (in your case your GPU)
go to details tab,

select "Compatible ID's"

It should look something like this:

 

So for me my vendor id was 8086 and my device id was 3b56