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So tried to install Big Sur again on a different SATA HDD. Another fail from the looks of it. It got all the way to "Less than a minute remaining" on the Apple logo (black background) and has now halted. There's no HDD LED activity and the CPU fan is running faster than normal (indicating it's...

I'll look into that. Another thing I forgot about: the OS thinks I am on battery even when connected to charger. Battery percentage shows, but it does not update in real time. I did try adding SMCBatteryManager.kext and ECEnabler.kext. Those did not help. They helped me on my other laptop. I'm...

So I've mapped my USB ports following that guide. Everything looks good as far as USB is concerned. I also switched to SMBIOS MBP15,2. Sleep and wake seem to be working OK now (was working on 15,3 too). Restarting the system appears to work now. It's successfully rebooting (no panics) and...

Ah, I was picking the SMBIOS' that matched my CPU type (it's a Hexa core 45W chip), so I thought MBP15.1, MBP15.3 and Macmini8.1 were the better choices. I'll try out 15.2 to see how that goes. I haven't done the port mapping yet as I was spending so much time trying to get Big Sur installed...

I've attached my current EFI folder and removed the serial numbers from config.plist.

Updates: So after still failing to get Big Sur up and running, I decided to try out Catalina. That was also a little troubling to install. The installer would hang at 2 minutes remaining all the time. In response to this, I took out the drive that was in my laptop and replaced it with another...

After having some success installing Big Sur on two other machines (one laptop and one desktop), I decided to try it out on my gaming laptop. Both the other builds are Skylake. My laptop has the following specs: CPU: Intel Core i7 8750H GPU: Intel UHD 630 + GTX 1050Ti (using -wegnoegpu boot arg...

Tested boot chime on my other hackintosh (an old desktop I used to use). It has the ALC1150 codec. Filled out the config to enable the chime, rebooted and it worked with barely any effort. I see things on the debug logs pertaining to audio that I just don't see on my laptop. I don't know why...

No luck with those two settings either. AudioDxe.efi just doesn't detect the audio device. No clue why. It must be a compatibility issue.

I have that enabled as well. I'm on Big Sur though with OpenCore 0.7.6.

Tried those settings and still nothing. It only works in the OS. Logs still show the exact same thing. I guess it just isn't compatible with my laptop for some reason.

Yeah, that don't work for me. What does your DeviceProperties look like for the audio, or are you using the boot-arg?

Could the latest OC update (0.7.6) have done something to break the chime on this codec? I never bothered trying to see if the chime worked on the previous OC version. No clue if it worked on that version. In the guide, it says you should see these two entries in the debug logs: 06:065 00:004...

I've been playing around with those settings for ages. Nothing seems to work. I even went through various layout-IDs. It made no difference. The debug log contains nothing about it even attempting to play a chime. I've no clue how to proceed with this one. I've had a few other issues while I...

Attached my current EFI folder. I removed the serial numbers from PI > Generic since I've seen others that share their EFI/config do that or get told to do that.

I downloaded the files from here: https://github.com/acidanthera/OcBinaryData I copied the "Resources" folder to the one in my EFI folder. I checked the files on my drive's EFI to see that stuff appears and it does. In the "Audio" folder, a load of audio files show up. I assume the boot chime...

That's pretty much what I set, yet the debug log just doesn't show it loading. It just shows what posted in the OP. By audio file, do you mean the AppleALC.kext or some other file? I added AudioDxe to the drivers folder in the EFI folder and made sure it's present in the config's UEFI >...

I've been trying to get the boot chime to work on an Acer Swift 3 gold laptop. The laptop has the ALC255 codec and the audio works inside the MacOS. I've installed Big Sur. I've followed the OpenCore guide up until the AudioOut option. I had to leave that option for now. I filled out all the...