OpenCore Intel UHD 630 Dual Screen

[erdemc]

You're still not clear what port is not working.

HDMI?
DP?
USB Type-C?

My External Monitor Names: "DELL E2214H" and "DELL E2418HN"
My notebook have 1 HDMI port, 1 Type-C port and 2 Display Port
2 Display port working on Big Sur
1 Type-C port working on Big Sur
1 HDMI port working on Big Sur
Problem is,
If I plug "DELL E2214H" to DP and I plug "DELL E2418HN" to HDMI, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to HDMI and I plug "DELL E2418HN" to DP, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to DP and I plug "DELL E2418HN" to Type-C, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to HDMI and I plug "DELL E2418HN" to Type-C, 2 monitor run and showing display but both of same screen like a mirror

And the all cases, Just one monitor names show on the "Displays" window

 

[EliteMacx86]

My External Monitor Names: "DELL E2214H" and "DELL E2418HN"
My notebook have 1 HDMI port, 1 Type-C port and 2 Display Port
2 Display port working on Big Sur
1 Type-C port working on Big Sur
1 HDMI port working on Big Sur
Problem is,
If I plug "DELL E2214H" to DP and I plug "DELL E2418HN" to HDMI, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to HDMI and I plug "DELL E2418HN" to DP, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to DP and I plug "DELL E2418HN" to Type-C, 2 monitor run and showing display but both of same screen like a mirror

If I plug "DELL E2214H" to HDMI and I plug "DELL E2418HN" to Type-C, 2 monitor run and showing display but both of same screen like a mirror

And the all cases, Just one monitor names show on the "Displays" window

For that, you need to connect your desired monitors and go to System Preferences>Displays>Arrangement>Uncheck Mirror Displays and you can use it as a separate displays.

 

[erdemc]

For that, you need to connect your desired monitors and go to System Preferences>Displays>Arrangement>Uncheck Mirror Displays and you can use it as a separate displays.

These are screenshot my last configuration, You've see Just one monitor showing on the "Displays" list
And IORegistryExplorer summries this: My IORegistryExplorer

 

[EliteMacx86]

View attachment 3750View attachment 3751

These are screenshot my last configuration, You've see Just one monitor showing on the "Displays" list
And IORegistryExplorer summries this: My IORegistryExplorer

Where is your internal screen?

 

[erdemc]

Where is your internal screen?

My laptop's lid closed, I'm used that way
Because, I have 2 external monitor and I don't need laptop's screen

 

[EliteMacx86]

My laptop's lid closed, I'm used that way
Because, I have 2 external monitor and I don't need laptop's screen

Well, both external screen doesn't seems to be connected. Note that mirroring or separate displays will be only available when you connect at least two displays.

 

[erdemc]

Well, both external screen doesn't seems to be connected. Note that mirroring or separate displays will be only available when you connect at least two displays.

Do you have any framebuffer suggestion?

 

[EliteMacx86]

Do you have any framebuffer suggestion?

You need to patch framebuffers. It varies from ports to ports and the Laptop itself.

 

[erdemc]

Yes, I understand but I'm try different framebuffers, for example These screenshots(Attachment)

And 4 more screenshots in attachments, these screens from OIRegistryExplorer Apps,
I try one monitor one by one on connection ports(HDMI, DP and Type-C) and after then take screen shots

 

[EliteMacx86]

Yes, I understand but I'm try different framebuffers, for example These screenshots(Attachment)

And 4 more screenshots in attachments, these screens from OIRegistryExplorer Apps,
I try one monitor one by one on connection ports(HDMI, DP and Type-C) and after then take screen shots

What's the reason to spoof Video Device ID?