I have working HD4400 with QE/CI/GL and HDMI works, but for all I am worth, I cannot get HDMI/DP Audio device to appear when connected :-(
I know I probably need to do some seriouspatches to my DSDT and some SSDT's for IGPU (currently using rename ACPI patch in Clover) and hda-gfx and also BOD3 to HDAU???
I have HDEF, and audio works well with internal speakers, headphone/microphone/internal microphone.
My BIOS has Audio DSP disabled in UEFI BIOS, because when enabled it disables Azalea, meaning no audio devices appear whatsoever. There is also an option for what codec to report... IDP, Cirrus, Realtek, None (I have Realtek selected).
If you have HD 4400 mobile with HDMI-AUDIO, PLEASE PLEASE give me some guidance.
Many thanks.
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