I've done lots of googling and tried many driver updates and various voodoo but cannot get windows 10 to recognize hdmi as an audio output option on my 2012 Mac mini
I'm using a vizio d50 and works fine under high sierra and catalina
does anyone have hdmi audio output on a 2012 Mac mini under windows 10 or am I chasing a ghost?
Hello, I don't know if in the meantime you fixed the issue but yesterday I installed Win10 on my 2012 Quad i7 Mini and I just got the same problem. After a LOT of googling here and there I found the source of the issue: I made the mistake to install Windows in UEFI mode instead of Legacy mode (this is the default for Win10 install on PCs but it is not the right way for intel Macs). Once I revert my installation to Legacy mode and updating the intel drivers to latest available for HD4000 the HDMI audio output was actually shown in the audio preferences. If you already updated the driver then the simple GPT -> MBR conversion will be enough to activate the HDMI audio.
From what I have understood the hardware resources of the intel Macs are exposed to Windows in different way when the installation is made in UEFI or Legacy mode and since on Macs you have no access to low level BIOS settings there is no way to tell Windows about a specific hardware resource before the system loading.
Since I disliked the idea of a complete Win10 reinstall I found on YouTube various videos that explain how convert the partition back to MBR (from the wrong GPT scheme) without data loss.
I don't know if the same method can be safely applied to mixed OSX/WIN hard drives (I mean MacOS partition + BootCamp) but in my case Windows was the only operating system installed so I had not to worry about.
I was looking for a freeware/shareware solution for doing this task, supposedly to do it once time in the life but I was out of luck: the only tool more often reported to make the conversion GPT -> MBR happen was the commercial AOMEI Partition Assistant so I choosed that way. The Standard Edition has the conversion part disabled, you have to go with the PRO version and then follow the various YouTube tutorials on how to use it once installed. Of course if you have a genuine Win10 installation disk you can wipe out everything and redo the installation from scratch taking care to format the destination HDD (or better SSD) with MBR scheme from the beginning, this will save you from pay the $50 for the AOMEI tool (I was simply too lazy to do the whole process again).
I hope there is a better/cheaper method to do this conversion (without OpenCore involved) but I am not aware about.
I found this video on YouTube that explain quite well the steps to follow to correctly set up an MBR partition for Windows install, in short you have to open a command line from the Windows installer, select the disk you intend to format in MBR scheme, clean it and then convert to mbr then go back to win installer and continue.
@mdgm, yes I did. On my macbook 2011 this DSDT patch is working, along with the driver.
But on this mac mini 2012, it doesnt work. In fact the Cirrus audio driver work without the DSDT patch, what we are trying to solve here is the Intel HDMI Audio, which is not showing under windows as Output device. The driver for it seems to be installed correctly under device manager and there is no malfunction symbols.
