If you have patience, CEC may work at some point with mainline kernel. There is not fast solution.

See There is an issue with the build framework that prevents base-files from being built for the arm64 target. At present time the issue is unresolved, and the root cause might be still unknown.

I ran into the same problem when setting up a retroarch based gaming system with Armbian Debian Trixie. I wanted to use my Dualsense 4 controller with it but couldn't get it to work on Vendor or Current. I later realized that you need to enable `LEDS_CLASS_MULTICOLOR` and `HID_PLAYSTATION` for it to work with the controller. This was only present from the kernel 6.2 and involved compiling the kernel after enabling those flags. I got that working in current and edge but I lost HDMI-CEC. The edge kernel at the time is 6.18.0 for rock 5b. Is there any way forward to get both functionalities working? I see that HDMI-CEC is listed as `n/a` under rock 5b here: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/notes-for-rockchip-3588/-/blob/main/mainline-status.md.

didn't even realize you were on beta repo. Well when you use bleeding edge, you have to be prepared for breakage since it is expected ;).

https://github.com/armbian/os/commits/25.11.0-trunk.367/git_sources.json This file determine state (hash) of sources. It's not a straightforward process, but one can recreate exact image (except userspace packages, which versions are not stored) This file has to be here https://github.com/armbian/build/commit/31e82512cc60a74f56b710aa2971d7dc2beec9b9 One day, this will be done better Sadly there is too much of such e-waste and way way too little people willing to maintain them in their limited private time. I am sure you can find a working image somewhere in our archives so you don't need to throw it away, but we cannot fool you & ourselves to be able to keep this board maintained.