To set the AAPL,ig-platform-id for gigabyte haswell systems, inject via DSDT a new device entry:īuffer (0x04) ,ĭTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0)) That platform-id is the only one that maps to a layout that uses DP for port #0. The AAPL,ig-platform-id that works with DP on my system is 03 00 22 0d. I can get video out of my gigabyte motherboard's DVI port with these, but the resolution is busted (driver attempts full 2560x1440 resolution, but motherboard doesn't do dual-link DVI, and so result is a distorted desktop display. Upon investigation, these 2 layouts share the same port maps with port 0 being LVDS, port 1 DP (displayport) and port 2 HDMI. My system is a gigabyte z87mx-d3h.Įxisting instructions suggest setting AAPL,ig-platform-id to either 00 00 26 0c or 00 00 16 0a, but these platform IDs map to layouts that leave my displayport blank. At last, I have working QE/CI via displayport with my built-in haswell HD Graphics 4600.
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