- Joined
- Jan 16, 2014
- Messages
- 25
- Motherboard
- LG GRAM 17Z990
- CPU
- i7-8565U
- Graphics
- UHD 620
- Mobile Phone
LG GRAM 17Z990
Motherboard: 17z990-V.AA75B - Opencore 0.6.8
CPU: 8 × Intel® Core™ i7-8565U CPU @ 1.80GHz
Graphics: Mesa Intel® UHD Graphics 620 (2560x1600)
I have got Mohave running for some time now, using OpenCore 0.5.6 Efi I downloaded somewhere from the Internet.
I upgraded to OpenCore 0.6.8 so I could install Big Sur.
I created 0.6.8 config.plist from scratch and used OpenCore 0.5.6 config.plist configuration as a reference, trying to mimic it. I mimic also all kext three (using upgraded versions) and copied DDTD and SSDT from 0.5.6. At some time I think I recreated the ACPI files with new ones.
After lots of trying I managed to boot up with the new OC, (with some problems) upgraded from Mojave to Catalina, then I updated it few times when requested and then I upgraded again to Big Sur.
Everything worked well, except that all problems I had with initial 0.6.8 remained.
So far...
a) The system takes 5 minutes to boot with a black screen taking most of the time.
b) If I remove -v from start up params, I think it hangs.
c) There was an error waking up saying that it could not redeclare "\_SB_.PCI0.LPCB.HPET._CRS" (AE_ALREADY_EXISTS) when trying to load an ssdt. I ended up patching ddst changing the name of the function to XCRS. Message is gone but I saw no improvement.
d) Touchpad does not work.
e) Sound dos not work (yet it works with bluetooth).
f) I have problems with downloading things from apple store, yet I think It has to do with some clean up of old cached files?
What seems to work:
a) WIFI from the internal intel chipset.
b) GPU
c) Bluetooth
d) Battery management (as long as I can say)
e) Keyboard backlight.
f) USB's.
I am stocked. I don't see any other thing to look up at.
I send you my EFI in case anybody want to try or continue from were I left.
Any help or tip will be highly appreciated.
The system is usable with an external mouse. If I only could fix the touchpad...
Motherboard: 17z990-V.AA75B - Opencore 0.6.8
CPU: 8 × Intel® Core™ i7-8565U CPU @ 1.80GHz
Graphics: Mesa Intel® UHD Graphics 620 (2560x1600)
I have got Mohave running for some time now, using OpenCore 0.5.6 Efi I downloaded somewhere from the Internet.
I upgraded to OpenCore 0.6.8 so I could install Big Sur.
I created 0.6.8 config.plist from scratch and used OpenCore 0.5.6 config.plist configuration as a reference, trying to mimic it. I mimic also all kext three (using upgraded versions) and copied DDTD and SSDT from 0.5.6. At some time I think I recreated the ACPI files with new ones.
After lots of trying I managed to boot up with the new OC, (with some problems) upgraded from Mojave to Catalina, then I updated it few times when requested and then I upgraded again to Big Sur.
Everything worked well, except that all problems I had with initial 0.6.8 remained.
So far...
a) The system takes 5 minutes to boot with a black screen taking most of the time.
b) If I remove -v from start up params, I think it hangs.
c) There was an error waking up saying that it could not redeclare "\_SB_.PCI0.LPCB.HPET._CRS" (AE_ALREADY_EXISTS) when trying to load an ssdt. I ended up patching ddst changing the name of the function to XCRS. Message is gone but I saw no improvement.
d) Touchpad does not work.
e) Sound dos not work (yet it works with bluetooth).
f) I have problems with downloading things from apple store, yet I think It has to do with some clean up of old cached files?
What seems to work:
a) WIFI from the internal intel chipset.
b) GPU
c) Bluetooth
d) Battery management (as long as I can say)
e) Keyboard backlight.
f) USB's.
I am stocked. I don't see any other thing to look up at.
I send you my EFI in case anybody want to try or continue from were I left.
Any help or tip will be highly appreciated.
The system is usable with an external mouse. If I only could fix the touchpad...
Last edited:
