This is a OpenCore EFI folder for Dell m3800 with 4k display (2015 model) screen ready to work with 10.15.x and 11.x [#f03c15]So far that
Works:
- 3D accelelation (2GB vram + framebuffer patched: 160MB bios, 48MB),
- Wifi (switched to compatible one),
- Blutooth (patched),
- Sound keys (F1-F3 keys)
- HDMI/DVI video
- HDMI audio
- DVI video/audio (4k/60Hz)
- 60Hz in most of the hi-res sceens (known bug: 4k/60Hz setting for internal screen starts flickering for unknown reaseons)
- Keyboard
- Battery
- Part of multimedia keys (volume)
- night shift
- camera
- disabled Nvidia
- Toughable screen
- SD card reader
- screen brightness (+ keys)
- Touchpad with guestures
- fullly USB patch -> replaced USBInjectAll.kext
Should work, but not fully tested yet:
- sleep & wake on battery and AC power,
- Lid close sleep & wakesup after Lid open
- Deep sleep
Does not work yet/Still to do:
- light sensor
Did not check it yet:
- iMessage, FaceTime
Known issues:
- 4k/60Hz internal screen - flickers - solution to to install SwitchResX app and create the custom resoltion 4k with 57Hz refresh rate (repeat it for the scanale ref)
- sound issues - system startup with headset plug in causes internal sound not working
- after wakeup from sleep performace issues occures
OpenCore version:
- 0.7.1
Supports clean Apple "Software update.."
OpenCore tutorial: https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/haswell.html#starting-point