lamatta17 Posted October 15, 2021 Share Posted October 15, 2021 Hervé gave me the tip: HDMI audio can only work if you inject the HDMI type to the relevant connector (usually con1): framebuffer-con1-enable 1 NUMBER framebuffer-con1-type 00080000 DATA But doesn't work Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted October 15, 2021 Moderators Share Posted October 15, 2021 It's possible your HDMI port is not Con1, could be Con2 or Con3 Please post IOreg files using IORegistryExplorer.app v2.1 to better determine Link to comment Share on other sites More sharing options...
Administrators Hervé Posted October 15, 2021 Administrators Share Posted October 15, 2021 @lamatta17 Check in IOReg which connector your HDMI display attaches to. Then inject the above properties to the identified connector. It's as simple as that. As stated by Jake, it may not be con1 on your NUC but con0 or con2 given that you inject SKL FB 0x191B0000 which defines 3 x output ports: ID: 191B0000, STOLEN: 34 MB, FBMEM: 21 MB, VRAM: 1536 MB, Flags: 0x0000110F TOTAL STOLEN: 56 MB, TOTAL CURSOR: 1 MB (1572864 bytes), MAX STOLEN: 124 MB, MAX OVERALL: 125 MB (131608576 bytes) Model name: Intel HD Graphics SKL CRB Camellia: CamelliaDisabled (0), Freq: 1388 Hz, FreqMax: 1388 Hz Mobile: 1, PipeCount: 3, PortCount: 3, FBMemoryCount: 3 [0] busId: 0x00, pipe: 8, type: 0x00000002, flags: 0x00000098 - ConnectorLVDS [1] busId: 0x05, pipe: 9, type: 0x00000400, flags: 0x00000187 - ConnectorDP [2] busId: 0x04, pipe: 10, type: 0x00000400, flags: 0x00000187 - ConnectorDP 00000800 02000000 98000000 01050900 00040000 87010000 02040A00 00040000 87010000 I also notice that, for some unspecified reason, you inject pipe value 0x12 alongside the HDMI connector type. Please note that this was only required on Haswell platforms to obtain stable HDMI output. It ain't required on Skylake platforms and I recommend you remove that unnecessary property. Link to comment Share on other sites More sharing options...
lamatta17 Posted October 16, 2021 Author Share Posted October 16, 2021 Thanks for the support. Here now the ioreg from my NUC. MacBook Pro.ioreg.zip Link to comment Share on other sites More sharing options...
lamatta17 Posted October 26, 2021 Author Share Posted October 26, 2021 Unfortunately, I have not managed to output the sound via HDMI. Could you help me there again. I have already uploaded the ioreg. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted October 26, 2021 Moderators Share Posted October 26, 2021 According to your IOReg file, you're using an SMBIOS of a laptop...is there a reason why? For Skylake, switch to iMac17,1 AAPL,ig-platform-id = 00001219 Link to comment Share on other sites More sharing options...
lamatta17 Posted October 27, 2021 Author Share Posted October 27, 2021 I took your advice and made the changes. After that I tried the 3 framebuffer variants. Everything runs but no sound over HDMI. MacBook Pro von Wuz.ioreg.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted October 27, 2021 Moderators Share Posted October 27, 2021 according to the IOReg file you have device-id set to 1b190000, should change it to 12190000 Looks like you're connected to Con1 so make sure to add the frame buffer patches you posted on the 1st post. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted October 27, 2021 Administrators Share Posted October 27, 2021 Your IOReg shows a display connected to FB@1, i.e. con1 that's not set to type HDMI (but default DP type). You need to add patch your connector as specified before. Don't know what else to say really... Link to comment Share on other sites More sharing options...
lamatta17 Posted November 1, 2021 Author Share Posted November 1, 2021 Followed your tips. But it does not work. The sleep mode also causes problems. When I activate sleep mode, the power LED changes from steady blue to blinking orange. This is how it is supposed to be. If I press a key the LED turns blue again, but there is no picture on the monitor. Hackintool shows: hibernatemode and proximitywake green. Wuz.ioreg.zip config.plist.zip Link to comment Share on other sites More sharing options...
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