quartz38

Thanks Hervé, your last advice worked, display stay alive without disconnecting HDMI

Hi Hervé, Some news with some progress. The system boot and I have now graphics acceleration but with some issues. At the boot end, the display goes black, come back with the login display ,and then goes black again and stay black. I must disconnect hdmi connector and reconnect it to get the display again and after it is running correctly with acceleration. Here joins are the new files Have you an idea ? Many thanks for help EFI.zip Vorke.ioreg

Yes DVMT i did this several times but i thought that Watevergreen was doing this now. I will try to apply these patches

Same result, black screen and reboot. I have only HDMI output on this Nuc so no possible to see change in IOReg. Do you think I can modify acpi tables in the bios like in the beginning to increase Vram ?

This miniPC has an hdmi output. It is using a mobile processor as the one i had i my previous Dell Latitude 5590. As you said, consequences are a slow running but without glitches.

Thanks for answer Hervé. I tried with : AAPL,ig-platform-id 00001259 and device-id 16590000, black screen and reboot again and again. If i remove device-id line and let only the first one, i can access the desktop. In fact, on the first line, i can put anything, it can boot, only the second line give me a black screen and reboot

Hi, I use a "simili Nuc" bought some years ago. I tried to install MacOS on it. I could do it, Ventura is booting and working partially, but not possible to activate video acceleration. Here are some characteristics, name is Vorke V2 : - intel equiped with a i5-8250u, 16 Go ram, network running, video running but with Intel Graphics 620 7mb displayed. OpenCore 0.9.8, kext and drivers removed. Many thanks for help. Regards Serge VorkeMAC.ioreg EFI.zip

Thank you for answer, I have seen a post on another forum talking aboute I2C I will try too post on it. My laptop is 90 % finished so I can now wait for a final solution. Your help greatly permitted to me to go forward Thanks Jake

Hi Jake, Very busy this week. I m quite sure keyboard is PS2 so all buttons are on a the same board as touchpad. Do you think I must try to re install High Sierra ? PS: Just tried, I had already installed high Sierra on an external same result, no buttons .. ?

Jake, I have been thinking about what you said concerning buttons driven in keyboard kext. I can boot this laptop windows 10. is there a window or dos program which would permit to give this answer ?

Hi Jake, I looked in windows touchpad id is \_SB.PCI0.I2C1.TPD1 I think touchpad include buttons (not part of keyboard)

Yes, click by tapping is ok and 2 fingers tap for right clic also ok.

Hi Jake, I discovered that the trackpad is working but not the buttons ! no action on clic. I mostly use mouse but in this case I used only trackpad with buttons I will try to analyse your patches (to try to understand ...) An idea ?

Hi Jake, Really, many thanks for all, that will be very helpfull for me. Very kind of you. I hope this post will be useful for somebody with 8th generation processors. Have a nice day.

Hi Jake, Again good news, slider is working. I think one file SSDT-PNLF or SSDT-ALS0 was corrupted. Compile it again, and all is working. I upgraded successfully to 10.13.6. Many thanks for help. PS : Please, what was the patches list you apply to my origin files ?