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zysuper / Thinkpad-X1-extreme-EFI

Thinkpad X1 extreme gen1 hackintosh EFI file for Catalina
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Testing igfxpavp & igfxfw of WhateverGreen #31

Open SukkaW opened 4 years ago

SukkaW commented 4 years ago

Those 2 boot args were added in WhateverGreen 1.3.8: https://github.com/acidanthera/WhateverGreen/releases/tag/1.3.8

I see igfxfw=2 has already be added to the boot-args, so what about having a try for igfxpavp=1? There are few X1E hackintoshers has been testing this: https://github.com/1Revenger1/X1-Extreme-OpenCore-Resources#device-properties

P.S. I also notice that -igfxmlr is added to the boot-args. Since it is known to all that X1E's HDMI and USB-C are hardwired to NVIDIA GPU, is it necessary to have the maximum link rate fix enabled?

zysuper commented 4 years ago
  1. igfxpavp=1 will cause the AppStore application to freeze.
  2. 4K internal display must use maximum link rate fix, otherwise the graphics driver will not work. If you are 1080p, you can not configure it.
zysuper commented 4 years ago

After doing some tests, I found that maximum link rate fix can be ignored, and enable-hdmi20 must be turned on, otherwise it will not enter the system. In addition, the test found that when igfxpavp is turned on, the iGPU frequency will always be at the maximum value, which causes the application to freeze.

SukkaW commented 4 years ago

In addition, the test found that when igfxpavp is turned on, the iGPU frequency will always be at the maximum value, which causes the application to freeze.

Strange. From acidanthera/bugtracker I only see igfxfw=2 could cause the problem: https://github.com/acidanthera/bugtracker/issues/800

zysuper commented 4 years ago

Just turning on igfxfw=2 will not cause problems. I only believe in real test results.