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UHD 620 can't fully drive

Joined
Jul 4, 2018
Messages
40
Motherboard
Yoga 920-13IKB
CPU
i7-8550u
Graphics
UHD620
Do you have sleep working? I have the same laptop but I cant get sleep working. I tried copying your efi but I still couldnt get sleep to work. Also, your EFI has whatevergreen and IntelGraphicsFixup + CoreDisplayFixup. Im pretty sure you only need whatevergreen.
 
Joined
Jan 28, 2019
Messages
6
Motherboard
z370-i
CPU
8700k
Graphics
1070ti
Sleep works if you remove VoodooI2C. Trackpad stops working though.
Do you have sleep working? I have the same laptop but I cant get sleep working. I tried copying your efi but I still couldnt get sleep to work. Also, your EFI has whatevergreen and IntelGraphicsFixup + CoreDisplayFixup. Im pretty sure you only need whatevergreen.
 
Joined
Jul 4, 2018
Messages
40
Motherboard
Yoga 920-13IKB
CPU
i7-8550u
Graphics
UHD620
Sleep works if you remove VoodooI2C. Trackpad stops working though.
I looked it over and it seems that Yisheng9 is using the DSDT that I posted, which is where the voodooi2c patches are. Rereading the guide, It seems that I forgot to follow the GPIO Pinning section of the guide. I'm not certain but this is probably what's causing the issue for both of our systems. Once I get a longer break form my college work I'll try and do that part of the guide and see if it fixes the sleep issue.


Edit: Nevermind, I did a quick readthrough of the guide and it wouldn't be necessary for this laptop anyways.
 
Last edited:
Joined
Oct 31, 2014
Messages
104
Motherboard
Lenovo LNVNB161216
CPU
i7-8550U
Graphics
UHD 620 (3840x2160)
Mobile Phone
Android
If you look at my Yoga C930 thread – I think 920 is almost the same thing – there's a mostly working fix for sleep.
 
Joined
Jul 4, 2018
Messages
40
Motherboard
Yoga 920-13IKB
CPU
i7-8550u
Graphics
UHD620
If you look at my Yoga C930 thread – I think 920 is almost the same thing – there's a mostly working fix for sleep.
I just found it a few days ago and was going to post about it here. The fix works exactly as you describe in your post where it still doesn't fully sleep, but it's good enough. Your guide is almost exactly what I had done. It seems like these two laptops are similar internally.
 
Joined
Oct 31, 2014
Messages
104
Motherboard
Lenovo LNVNB161216
CPU
i7-8550U
Graphics
UHD 620 (3840x2160)
Mobile Phone
Android
From what I've read 920 and C930 are indeed almost identical when it comes to internals, C930 is redesigned, but that's about it.
 
Joined
Jan 28, 2019
Messages
6
Motherboard
z370-i
CPU
8700k
Graphics
1070ti
Is it just putting the ssdt sleep all file into the right place to make it work?
 
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