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.

On vendor kernel you need to enable overlay https://github.com/armbian/build/blob/main/extensions/mesa-vpu.sh#L18-L28 mainline based gnome desktop + apt install kodi (just tested 4k/H264 video works without any problems)

Thanks for the responses! TBH I am not very familiar with the software stack from userspace required for video playback. So, some questions: - @chaitan3: You mentioned using a custom ffmpeg for mpv. Do you know if ffmpeg is also needed for kodi (when just using it to playback videos, not converting)? In https://github.com/mpv-player/mpv/pull/14690#issuecomment-4159253319 you mentioned you used kernel 6.19, but this didn't have mainline support yet, maybe the situation with 7.0 is different? - Does anyone here have a rough idea what is still needed for Kodi (including the whole software stack below) to fully support HW video decoding on said platform (good if you know if specific PRs), without needing custom patches and possible ETA for that?

I have three identical Odroid HC 4 which has been running the same software and using the kernel 6.12.32-current-meson64. Their are configured as NAS where the data is split across all three devices and therefore their are running constantly. A couple of weeks ago began the fan on one of the machines behavior different. It would either be running a full speed or no running, it was no longer possible to control via PWM. Now last week did another one start with the same behavior. I was do the following to test and validate the issue: I have disable the fancontrol service and manually written to hwmon2/pwm1 to set the PWM. Which was possible on the healthy HC4, but on the unhealthy HC4 would it only be full speed or no speed. I have tried the latest version of Armbian Noble and Trixie the hwmon2/pwm1 is exposed but doesn't allow me to modify the speed of the fan. I have tried the official os image from Hardkernel and here does the fan work as expected.

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