PaintArm

The DSDT hasn't made any difference unfortunately. I downloaded a voodooHDA kext and put that in EFI/Clover/Kexts and that loads up the audio. Not ideal or how I wanted it but I think I'll do that until I update to Mojave. The only side effect is I seem to get some odd graphics anomalies, flickers and things from time to time

I will try the DSDT and update you

I certainly can the next time it happens. I am connected over DP. When I was on 10.13.5 it worked fine. After the upgrade to 10.13.6 just intermittent. I was looking through the IOReg and it references the connector type as HDMI (<00 08 00 00>) and further down it references the dp device as C. I don’t know how to change the connector type to <00 04 00 00> which will identify it as a DP connector not HDMI. Maybe that would help. Also all references in IOReg for device is for HDAU are <00 07 00 00> but I think I need it to be <00 03 00 00> which makes the audio work natively with AppleHDA over the HD4600 DP port. Am I thinking on the right lines or no where near?

ok so that didn’t work either. New plan. Can you recommend a eGPU that will work?

Will do once I get home from work. Will update tomorrow

No joy still. I read that you can edit the AppleALC kext to point to the codec for the gtx 1050. Unfortunately I have no idea how to compile the source code in Xcode

here you go @Jake Lo

the only reference to and audio codec for the GTX 1050 I can find is the audio-codec-info shown in the screenshot. <00 01 05 00>

when I have audio over DP it seems to be random. If I achieve it from a cold boot then it is a gamble if I will have it again after either a restart or a complete shut down and boot. I haven't booted into windows for a while so I can't comment on that

I don't know whats going on. I've just booted back up and its working fine. There must be a bug somewhere causing intermittent issues Yep, definitely something intermittent. Rebooted and I've lost audio over DP again. I read somewhere that the HDEF and HDAU layout ID values need to be the same yet they are different for me. one is <03 00 00 00> and the other is <07 00 00 00>. Could this be an issue?

I can't as its being quarantined as malware. Sorry

So this morning I booted up and have lost audio again. Nothing has changed and it was fine all day yesterday

ok so I changed the audio inject value to 2 and now I have audio. Thanks for the help with the DSDT @Jake Lo. Much appreciated

I'm using the DP on the GTX 1050 Ti. I could upload my config.plist for you if that would be any help? Web driver is updated yes. debug_1044.zip

Yes, just booted into it. Still no audio over DP/HDMI. hmmmm

Oh ok. Not sure what I did to cause that then. Thanks for the help dude. Will the ssdt change everything or do I have more to do with regards to the usb patch?

oh right. no idea how that happened. Under devices in clover configurator I've always had the inject set to 3. Thanks for your help

@Jake Lo sorry for the late reply. have uploaded the debug files for you debug_12792.zip

How do I create a debug file? I’ve never had to before. Sorry

So, like most other people I have updated from 10.13.5 to 10.13.6. Everything is working great, including my GPU except since updating my audio no longer works. It no longer outputs over DP/HDMI. The only options I have are Hue Sync and my Apple TV. I have tried updating the AppleALC and Lilu kexts to the latest versions, rebuilt the permissions but still nothing. Any help would be appreciated. Thanks guys

@Jake Lo you are awesome. I added Lilu.kext and AppleALC to EFI/Clover/Kexts/Other with the files from your 3020_HDAU.zip attachment above in EFI/Clover/ACPI/Patched and restarted. Audio has loaded on Audio ID 3. I have sound over the DisplayPort using the DisplayPort to HDMI lead I bought. It also shows Internal Speakers but I assume that will only be for headphones. This is running on High Sierra 10.13.5 Once again, thanks for your patience and persistence. I was tying myself up in knots trying to sort this. You are a legend

this is what dpcimanager says now I've added those files

Should I be running lilu and AppleALC with this?

config.plist.zip PaintArm’s iMac.zip

Yes that’s right I did. I’ve since done a fresh install as it was getting cluttered. Basically what I’m after preferably would be HS 10.13.5 running from HD 4600 through DP with audio. I pretty much have that but the audio. Nothing is showing for audio at all. DPCIMANAGER shows my hardware as Realtek Unknown. Will post config and IOReg in a few minutes