Glitchy Graphics in UHD 620 (OC Big Sur Olarilla premade for notebook coffee lake)

[λάμδα]

Usually people get 7mb for their igpus but I'm getting 3mb only which results in 720p glitchy graphics.

I tried to add -

00009B3E in AAPL,ig-platform-id for intel uhd 620 and device-id to 9B3E0000 according to https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/coffee-lake.html#deviceproperties

Still doesnt work. What am I missing? Some dsdt I have to patch for gpu?

Here's my config file. Couldn't upload my efi in zip coz of file limit. Also MaLd0m is a legend you saved me from countless more hours of troubleshooting, Thank YOU!

config.rar

Edited February 26, 2021 by λάμδα

[anto barreca]

12 minutes ago, λάμδα said:

Usually people get 7mb for their igpus but I'm getting 3mb only which results in 720p glitchy graphics.

I tried to add -

00009B3E in AAPL,ig-platform-id for intel uhd 620 and device-id to 9B3E0000 according to https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/coffee-lake.html#deviceproperties

Still doesnt work. What am I missing? Some dsdt I have to patch for gpu?

Here's my config file. Couldn't upload my efi in zip coz of file limit. Also MaLd0m is a legend you saved me from countless more hours of troubleshooting, Thank YOU!

config.rar 5.05 kB · 0 downloads

https://www.olarila.com/topic/6420-guide-mobile-intel-hd-graphics-clover-or-opencore/

[λάμδα]

12 minutes ago, anto barreca said:

https://www.olarila.com/topic/6420-guide-mobile-intel-hd-graphics-clover-or-opencore/

I did go there before posting but there was no UHD 620 config and I don't what the generic patch is.

 

[anto barreca]

19 minutes ago, λάμδα said:

I did go there before posting but there was no UHD 620 config and I don't what the generic patch is.

 

what is your cpu? hardware

[λάμδα]

1 minute ago, anto barreca said:

what is your cpu? hardware

Intel i5-8250U, UHD 620

HP Probook x360 440 G1

MX130(which I dont wanna use coz nvidia doesnt work if im not wrong)

[anto barreca]

<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
            <dict>
                <key>AAPL,GfxYTile</key>
                <data>AQAAAA==</data>
                <key>AAPL,ig-platform-id</key>
                <data>CQClPg==</data>
                <key>device-id</key>
                <data>pT4AAA==</data>
                <key>framebuffer-fbmem</key>
                <data>AACQAA==</data>
                <key>framebuffer-patch-enable</key>
                <data>AQAAAA==</data>
                <key>framebuffer-stolenmem</key>
                <data>AAAwAQ==</data>
                <key>hda-gfx</key>
                <string>onboard-1</string>
            </dict>      this is for 620 serie 8

[λάμδα]

2 hours ago, anto barreca said:

<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
            <dict>
                <key>AAPL,GfxYTile</key>
                <data>AQAAAA==</data>
                <key>AAPL,ig-platform-id</key>
                <data>CQClPg==</data>
                <key>device-id</key>
                <data>pT4AAA==</data>
                <key>framebuffer-fbmem</key>
                <data>AACQAA==</data>
                <key>framebuffer-patch-enable</key>
                <data>AQAAAA==</data>
                <key>framebuffer-stolenmem</key>
                <data>AAAwAQ==</data>
                <key>hda-gfx</key>
                <string>onboard-1</string>
            </dict>      this is for 620 serie 8

oh my god you absolute legend it works but with a slight problem. The screen brightness goes up and down every half second like in a specific frequency I have video but cant share here i think.

[anto barreca]

11 minutes ago, λάμδα said:

oh my god you absolute legend it works but with a slight problem. The screen brightness goes up and down every half second like in a specific frequency I have video but cant share here i think.

?You have disabled Nvidia from bios yes? Give 64mb to the 620uhd from bios, update lilu and whatevergreen Kexts,,, Yassu ?

[λάμδα]

16 minutes ago, anto barreca said:

?You have disabled Nvidia from bios yes? Give 64mb to the 620uhd from bios, update lilu and whatevergreen Kexts,,, Yassu ?

Yes I have set it to 128 mb and uma instead of hybrid which I assume is only discreet graphics still this is happening. Graphics acceleration works awesome but the brightness goes up and down sooo fast, ina high frequency idk what to do.

[MaLd0n]

https://www.olarila.com/topic/6420-guide-mobile-intel-hd-graphics-clover-or-opencore/