Change Model for Airplay Mirroring

[marosell]

So I can't get Airplay Mirroring to work in MLoins. Attempted to change system model identifier to iMac12,1, but it didn't enable it. I look under "About This Mac" and it still shows the old model, "Mac Pro 2008", though the system identifier has been changed. Thoughts?

 

[Albertsw]

I think you need to be using Intel HD 3000 or 4000 to use mirroring.

 

[rgardner]

try changing your system definition to iMac 12,2 and enabling your internal graphics card (HD4000 if you have i3,i5,i7etc) as 'always on' in your bios. I did both of these and it is now working on my hack even using the AMD Radeon 6870 i have installed.

 

[Hdtran29]

try changing your system definition to iMac 12,2 and enabling your internal graphics card (HD4000 if you have i3,i5,i7etc) as 'always on' in your bios. I did both of these and it is now working on my hack even using the AMD Radeon 6870 i have installed.

I just changed both of what you said above, but there is no airplay mirroring "icon" at the top of my toolbar. Any suggestions?
When I boot up, it's a black screen. I turned on my apple TV and has it to the newest firmware. I confirmed it working by testing it out on my macbook pro, which shows the airplay mirroring icon. I went into my hack pro's settings panel and went into the display settings. There was no option for airplay mirroring as it shows on my macbook pro. I tried just about all the different profiles through Multibeast and nothing has changed...

Thoughts?