Question for Rehabman:
Should the minidisplay port work out of the box with your patches applied? I haven't tested the displayport until now and I get a lockup when pluggin a monitor in ( I'm on 10.10.4 ).
Ddi you implement DP-audio? Fixing HDMI/DP-audio tends to fix hotplug.
HDMI-audio on Haswell has several requirements:
- the device at address 0x00030000, usually called B0D3, must be renamed to HDAU
- the resulting HDAU device must be recognized by AppleHDAController (config.plist patches required if not natively recognized... or you can use FakePCIID_Intel_HDMI_Audio.kext)
- your framebuffer must be patched for HDMI-audio (there are patches in my default config.plist (disabled) files:
https://github.com/RehabMan/OS-X-Clover-Laptop-Config). It is trial/error to determine which port your HDMI is connected (actually, they are positional and you can tell by looking at ioreg).
- patched AppleHDA is required (sometimes VoodooHDA works, but my experience has been not good)
- you have to inject "hda-gfx"="onboard-1" for IGPU and HDAU objects. This is usually done with DSDT/SSDT edits (_DSM methods)
If you have a true DP port, no need to patch the framebuffer, unless you also need to change the 09 to 12 (see the (12) variant patches in my config.plist files), but keep the connector type at DP (00 04 00 00).
