It works well, but an extra display appeared.

[crazyhulk]

System

• Motherboard: EPC621D8A
• BIOS Version: 2.10
• GPU: RX 6950xt
• [Y] CSM is turned off. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [Y] 4G decoding is enabled. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [N] UEFIPatch is applied (see Using UEFIPatch for more information). On some motherboards DSDT Patching is also needed
• [Y] I have read Common issues (and fixes)

Description
I have some questions:

1. There is an extra display appeared when enable resizable bar.
   
2. What is the difference between bar0 and bar1 ? The BAR0 is 16G.
   
3. I can not boot my hackintosh(mac OS) after enable resizeable bar. I set ResizeAppleGpuBars to 0 which the OpenCore suggested.
4. No video output during boot before OS loads, I had read Common issues (and fixes), and my motherboard does not need Above 4G Decoding Patch. So if I want a bios change, I must do it by BMC, the bmc can do it by KVM.

Thx!

[xCuri0]

@crazyhulk regarding hackintosh read this #32

BAR1 is used for something else on AMD, I don't think it being 256MB matters it's like this on supported motherboards too.

[crazyhulk]

@crazyhulk regarding hackintosh read this #32

BAR1 is used for something else on AMD, I don't think it being 256MB matters it's like this on supported motherboards too.

Thx very much, I will test it and give a reply.