iMac 2012, Is the Intel HD 4000 enabled or not?

justperry said:

Is that proof, a Mac Games store, it just says it will work on 680 and HD4000, nothing to see here, unless I am blind.

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I guess you're blind then, since it's clearly stating my system has both the GTX 680MX and the HD 4000.

justperry said:

I started this thread about the HD4000, not 2500, and as you can see below has proof the HD4000 is on the chip.

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It is clear that *some* Ivy Bridge CPUs have the HD4000, but clearly not "all" as you are claiming.

A quick trip to Intel is all you need for this.

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justperry said:

Read about this a couple of months ago, didn't even think about this anymore.

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Well, it;s clear that the current version of Airplay Mirroring doesn't require an HD3000 or HD4000 since it works on the Core i5 versions of the 2012 iMacs.

You need the iGPU for Quicksync (Airplay mirroring) and T-Bolt.

Hi, long time since the thread was active. But I was hoping for a solution to activate the intel HD4000 for graphics. My late 2012 iMacs dGpu is not working correctly, but it still works when I remove the NVDAStartup.kext. But it's a pain in the ass when I want to upgrade the Os, I have to install on another Mac and then remove the kext to make it work and there are som graphic glitches especially in Safari. I can se that AppelIntelHD4000Graphics kext is loaded but it's not showing upp in System Profiler, just the Geforce 680MX even when all the Nvidia Kext are removed from the system. Did anyone find a solution to activate the iGpu on the i7 cpu? I was hoping that it may be possible through Opencore but is not skilled enough.

I'm fairly sure the Intell HD 4000 is not wired to the internal or external display. This means that whatever you're seeing is always done using the Nvidia 680MX, never the Intell 4000.