Greetings, I have an Orange Pi 5 with the edk2 1.1 UEFI bios on the SPI, and an NVMe installed.  The BIOS has been set to "Mainline" in the device tree option
I tried visiting here https://armbian.com/boards/uefi-arm64 and burning the minimal current6.18.8 CLI image to my USB stick.

The Orange Pi 5 displays the graphical grub menu with no problems, complete with penguin in the background etc, but once I choose the boot Armbian option, it displays a few lines of terminal output and then the monitor goes black as if the GPU is initializing and a desktop or graphic would be about to show - when instead, the monitor just reports no signal instead.

The system isn't frozen, the perhiperals are on and I can alt+ctrl+del to reboot it.

It's just attached to a very basic 1080p ASUS monitor that only does 60hz so I'm not sure what could be wrong

Thanks for any advice

Edited April 15Apr 15 by snow

I had similar experience, can't remember exact numbers and versions etc as I already considered it not going to work, so did not take notes. Was on NanoPi-R6C, so same RK3588S at least. I think I already had put 'serial' as console in the EDK2 setup (is in eMMC for NanoPi-R6C), but not the older display option (GOP or so, forgot it).

 

For my trial it was just the kernel, so instead of the a latest edge-rockchip64 that works all fine with EDK2 v1.1 in my setup, it was the generic UEFI-ARM64 kernel. You use a full image, so I think something is missing or not implemented yet. Also, my main assumption was (and is), is that only serial console is working for a CLI image. I have always a serial console cable available/prepared, although you need an extra other computer, but your OPi5 should simply run, just display is not initialized. You can look in dmesg, there might be a lot of HDMI debug/info, might also be the kernel and your HDMI monitor experience miscommunication, timing issue.

 

I rebooted again with 7.0-rc3 rockchip64 and that worked again. Now I did some apt pinning so I can install/use Debian sid kernel (6.19.11 at the moment). That works the same as the armbian build 7.0-rc3 rockchip64. Also Opensuse Tumbleweed with its default 6.19 kernel works fine.