[SOLVED] Intel UHD Graphics 620 (Whiskye Lake) Graphics Glitch Issue

[Silvered]

Try to wait for 3mins and then check if you can get the display. If already booted, restart and then check.

No display after5 mins. Can't boot with -igfxvesa, same problem. It's the SSDT-PNLF file

 

[EliteMacx86]

No display after5 mins. Can't boot with -igfxvesa, same problem. It's the SSDT-PNLF file

Okay, DVMT issue. I'll provide the fix by today.

 

[Silvered]

Okay, DVMT issue. I'll provide the fix by today.

Thank you

 

[EliteMacx86]

Thank you

Fix the following issues.

Remove the SSDTs and make sure you revert the original config.plist.
Add a 300 series RTC patch.

Comment: Fix 300-series RTC Bug
Find* [HEX]: A00A9353 54415301
Replace*[HEX]: A00A910A FF0BFFFF

Follow the backlight here: https://www.elitemacx86.com/threads/guide-how-to-enable-backlight-control-on-laptop.182/
Use the Method 2.

Compile the SSDT for the backlight from here: https://github.com/RehabMan/OS-X-Clover-Laptop-Config/blob/master/hotpatch/SSDT-PNLFCFL.dsl

In your config.plist, add "enable-cfl-backlight-fix" and set the properties to "01000000" value. In the value type, set it to DATA. I've updated the same in the backlight guide.

Once it's done, restart your Laptop and all the issues should be fixed related to Graphics and backlight.

Reply with new files.

 

[Silvered]

Fix the following issues.

Remove the SSDTs and make sure you revert the original config.plist.
Add a 300 series RTC patch.

Comment: Fix 300-series RTC Bug
Find* [HEX]: A00A9353 54415301
Replace*[HEX]: A00A910A FF0BFFFF

Follow the backlight here: https://www.elitemacx86.com/threads/guide-how-to-enable-backlight-control-on-laptop.182/
Use the Method 2.

Compile the SSDT for the backlight from here: https://github.com/RehabMan/OS-X-Clover-Laptop-Config/blob/master/hotpatch/SSDT-PNLFCFL.dsl

In your config.plist, add "enable-cfl-backlight-fix" and set the properties to "01000000" value. In the value type, set it to DATA.

Once it's done, restart your Laptop and all the issues should be fixed related to Graphics and backlight.

Reply with new files.

 

[EliteMacx86]

MBP15,4 is a poor choice for this hardware. Use MBP14,1.

Mark this thread SOLVED.

For Audio and other issues, create a separate thread.