Mountain Lion: HD3000/HD4000 with AMD or Nvidia, Working Together

[giacomoleopardo]

Even though you did not ask, the reason you do not have HD4000 DP/HDMI audio is the wrong Audio ID; edit dsdt/HDEF/layout-id to 0x03, 0x00, 0x00, 0x00.

I use HD4000/DP and GTX750 HD/HDMI with no issues. I do not see any problems in the IORegs. Are you are using a DP2mDP adapter and/or a TB connector?

You won't believe it, but I was just thinking about HD4000 #3 dsdt edit! I'll test and post asap.
Using DP to miniDP.
Meanwhile, thanks for the tip, man!

 

[giacomoleopardo]

Even though you did not ask, the reason you do not have HD4000 DP/HDMI audio is the wrong Audio ID; edit dsdt/HDEF/layout-id to 0x03, 0x00, 0x00, 0x00.

I use HD4000/DP and GTX750 HD/HDMI with no issues. I do not see any problems in the IORegs. Are you are using a DP2mDP adapter and/or a TB connector?

No luck. Apple Cinema Display still behaves incorrectly.
Ioreg and dsdt attached.

 

[toleda]

No luck. Apple Cinema Display still behaves incorrectly.

What did you change? IOReg and dsdt are no help in this kind of problem. Check/replace the adapter.

 

[giacomoleopardo]

What did you change? IOReg and dsdt are no help in this kind of problem. Check/replace the adapter.

I don't think the adapter is the issue: pluggin ACD into the Video card display port (dp to mdp as well) works properly. Using ACD with my other rig also no problems (integrated HD4000). It's kind of a little mistery!

 

[toleda]

I don't think the adapter is the issue: pluggin ACD into the Video card display port (dp to mdp as well) works properly. Using ACD with my other rig also no problems (integrated HD4000). It's kind of a little mistery!

No other suggestions.

 

[giacomoleopardo]

Well, thanks for your time. No big deal, anyway!

 

[madman1234]

I have an ATI HD4850 and HD4000 (i5-3570k)

Any chance to get both working at the same time?

 

[Dewitts]

Toleda what's the chance of this working with a laptop with switchable graphics?

 

[Zachwest]

this may be a stupid question but can i do this with a single display?

(GTX 650 & i7-3770k)

 

[toleda]

I have an ATI HD4850 and HD4000 (i5-3570k)

Is the HD 4860 recognized? What framebuffer?