jamieakers

Had a good search, tried many things but cannot get 4K on my Lenovo X1 Carbon Gen 5 (Kaby Lake, Intel HD Graphics 620 ... NOT UHD Graphics 620). Setup using guide here: https://github.com/anathonous/X1C5-Hackintosh-OpenCore-MacOSX/ with my only changes being to use Heliport and itlwm.kext, and upgrading to latest versions of WhateverGreen.kext and AppleALC.kext. If it makes any difference I'm using a Dell U3219Q connected over USB-C (DP alt-mode) and it's recognised and working at 1440p, USB devices connected to the monitor also work fine (the USB isn't hotplug, not fussed about this. Audio also doesn't work but again not fussed). Booting from an Ubuntu USB stick and I get 4K - ruling out any issues with the cable or hardware. DVMT is also set at 256MB in BIOS so I don't think there's an issue there. Things I have tried... - enable-hdmi20 on and off in config.plist. No effect. - manually specifying the port as being DP in config.plist with framebuffer-con2-type (con1 is the internal panel). Black screen trying this. - a variety of AAPL,ig-platform-id taken from the WEG guide. No effect. - igfxmpc in boot-args. No effect. - igfxtypec (just in case) in boot-args. No effect. I've also validated the EDID reported to macOS is correct (checked using IORegistryExplorer) in terms of the supported resolutions. All help gratefully received, thank you! I'd prefer to get it working over USB-C but if it has to be HDMI so be it. config.plist.zip