Radeon 560 must use IGFX to boot up

[wincen]

I installed a Gigabyte Radeon RX560 in my Sierra 10.12.6 build and it worked nearly flawlessly out of the box (sleep working). The main issue I am dealing with is the system will not boot unless I use Internal Graphics (IGFX) in the BIOS when I boot up.

This is not a huge deal, but it is an annoyance because I do boot other operating systems which requires me to switch cables (from my video card to internal graphics) so I can see my boot options.

Is there a fix to be able to boot up using my Radeon video card instead of IGFX?

 

[saudor]

cant you use whatevergreen kext? i thought that was supposed to fix that issue

 

[wincen]

cant you use whatevergreen kext? i thought that was supposed to fix that issue

I'm using whatevergreen 1.1.3

 

[mitch_de]

Works only together with LILU - the "mother" for such plugins.
I use WEG with LILU + my RX 460 (very similar to RX 560) - works with even my i5-3xxxP CPU has NOT an IGPU buildin!
I use Clover and that in normal= UEFI Mode. Maybe Legandy Clover (for old BIOS MB or incompatible UEFI MB) cant work with WEG.
Also such CSM Mode (in UEFI Bios) which makes UEFI BIOS (ob MB) legancy may give probs using WEG.