Babon

No, this is not working too.

Here it is. I'm using MBP15,2 

CLOVER.zip

This is not help.

FYI, there are a lot of such errors. 'gprw namespace lookup failure', but MacOs is loaded ok. This error was from the beggining with different configs.

I tried on ULTRAWIDE monitor. And then I thought maybe there is a resolution limitation. Next I connected to Full HD monitor and nothing happened.

When I click FN+F8 on CLOVER menu the HDMI monitor is working well, laptop display is blank, and after loading MacOs both are blank, when I connected the DP (over type-c) monitor (DP connected) is working well.

And I can't enable the laptop dispaly (pressing Fn+F8). I have to restart.

Maybe this will helpfull.

If it's possible to connect this laptop through VGA connector I'll happy

No, This is not help. The same "No Signal"

Done

MacBook Pro HDMI connected.zip

I tried. When I connected HDMI cable, the laptop screen become to black for about 1 second and at the same time monitor blink once and go to "no signal" state. And after this laptop monitor return to normal state.

ANd this ioreg with some different behavior.

I loaded the MacOs, connect the HDMI (without fn+f8) and run ioreg

MacBook Pro Babon HDMI.zip

Yes, with HDMI connected. If I connect HDMI on loaded MacOs nothing happened on connected monitor (no signal)

Jake, I have the same issue. DisplayPort over type-с is working well, but HDMI not. I attached the IORegistry info with my  Config.plist file

To activate HDMI connection I should click Fn+F8 before the MacOs entered the graphic mode. When I click this key combination I see the black screen on laptop and on HDMI connected monitor. DisplayPort monitor is working well at this time.

When I click the Fn+F8 after Mac Os is fully laded nothing happened.

Archive.zip