Hi Everyone, I'm using the Olarila image of macOS Catalina on my Surface Pro 6 (i7, Intel UHD 620). The installation went fine, and it boots up with no issues, but the graphics acceleration is not working. When I check "About This Mac," it shows Intel UHD 620 with only 19MB of video memory.
Things i have tried so far:
Installed WhateverGreen.kext and Lilu.kext to help with GPU support. Edited the config.plist: Tried different ig-platform-id values: 00001659 (for Coffee Lake UHD 620) 00001B59 and 00001A59 (for Kaby Lake UHD 620, since the CPU is Kaby Lake-R) Set device-id values: Tried 59178086 (for Coffee Lake) and 59168086 (for Kaby Lake). Added boot arguments: igfxonln=1 to fix the display detection issue. -disablegfxfirmware to bypass GPU-related firmware issues. Updated SMBIOS to MacBookPro14,1 (which uses Intel UHD 620). Removed binary patches related to DVMT and set framebuffer-stolenmem to 26MB (0x0000A001), and removed the framebuffer-cursormem field. However it is still showing only 19MB... i am desperate and have no idea what to do , any help will be appreciated.
config.zip
Thank you , thank you , thank you !!! Everything worked perfectly.. man i was trying for two months to get this working and with your help it worked in a second.