Opencore Black screen on HDMI once the installer starts

[Feartech]

I managed to get clover working but the problem of the external screen turning off remains. I also already tried with the igfxonln=1 and -igfxvesa boot options.

your zip file appears to be corrupt

 

[xRhino06]

your zip file appears to be corrupt

Here's the new one.

 

[Feartech]

Here's the new one.

you may want to enable the "framebuffers" in the PciRoot(0)/Pci(0x02,0) section as they are currently disabled. remove the #s

 

[xRhino06]

you may want to enable the "framebuffers" in the PciRoot(0)/Pci(0x02,0) section as they are currently disabled. remove the #s

Done but the problem remains.
From what little I can see from the laptop display I see that the screen is divided in two and the installer is split.

 

[Feartech]

Done but the problem remains.
From what little I can see from the laptop display I see that the screen is divided in two and the installer is split.View attachment 578945

are you able to click and drag those windows?

 

[xRhino06]

are you able to click and drag those windows?

I can't drag them. Is it possible to use a sortcut to open IORegistryExplorer with the keyboard? Taking advantage of the fact that there are two small screens I would be able to see the GPU connectors.

 

[Feartech]

I can't drag them. Is it possible to use a sortcut to open IORegistryExplorer with the keyboard? Taking advantage of the fact that there are two small screens I would be able to see the connectors.

not really as that is a 3rd party application you use when you have installed macOS

 

[xRhino06]

not really as that is a 3rd party application you use when you have installed macOS

So what could I do?

 

[Feartech]

So what could I do?

unless you can disable lvds which is your laptop screen so only your hdmi works

as lvds will be the default choice of screen when booting/installing mac
maybe con-0 / index 0

 

[xRhino06]

unless you can disable lvds which is your laptop screen so only your hdmi works

as lvds will be the default choice of screen when booting/installing mac
maybe con-0 / index 0

Could I detach it from the motherboard?