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No idea. I suggest to ask at Ubuntu's place directly if they support it. We can only support Armbian.

Personalized support will not erase your data unless specifically asked for. Yes, Igor is the founder of the Armbian project. Feel free to watch the video from the BalCCon2K17 on which he also talks a bit about the early days of Armbian: https://www.armbian.com/authors/

Make sure to read the topic above again and carefully to get all necessary information.

More information about personalized/professional support is available here: https://github.com/armbian/build#support

moved The images mentioned above are provided by a 3rd party that is not affiliated with the Armbian project. As with all downloads on the internet special precaution should be taken when using unofficial stuff.

Providing logs with armbianmonitor -u helps with troubleshooting and significantly raises chances that issue gets addressed. moved to unmaintained

moved

Took a quick look at the schematics and for once the dc jack has a few filtering components after going to 5V lane and for the other USB 5v seem not to be shorted through. So the answer is no, not possible. https://drive.google.com/drive/folders/1RH2j3TY7MUZvV9V_cz6r5iDbeloxnEy6

https://forum.armbian.com/terms

Besides the recommended images based on current kernel and stable userspaces we also provide cutting edge images for testing. Unfortunately due to that we notice and increasing amount of complains about such things won't work which is for some to be expected and for the other related to unstable userspace (like Debian sid). Dealing with such support requests causes time loss on our end and frustration on user's end since these issues most likely cannot even be solved by us. On our last Weekly Armbian Community Voice Chat on Discord we discussed this topic and came up with a few ideas how to deal with the situation. So what do you think how to deal with this? Please let us know by voting on one of the suggestions.

Seems like they offer "Armbian" images themselves: https://wiki.banana-pi.org/Banana_Pi_BPI-M5#Armbian

This is a measure that is unfortunately needed to fight spam in our forums. You don't see any because we're doing a pretty decent job keeping it clean Anyway this restriction will lift automatically after a short while for genuine users

Guess I'm old school in that matter

I think he wants to have Debian Testing userspace instead of stable (Bullseye) or unstable (sid)

You did not state any of the mandatory information necessary to even get a chance to identify the issue you have. Therefore the bare minimum that needs to be provided by you is the output of "armbianmonitor -u". Also take note of https://armbian.com/bugs

Armbian is designed to have one kernel installed at a time only. When using armbian-config for switching it checks apt repo for available packages for the board and gives the user the choice to install one of them. However it is possible to use the Armbian Build Framework to create a set of custom packages that can simply be installed via dpkg. Within creating those you have the option to adjust the kernel config. So in your situation you go through that building process three times to create three package sets with the different frequencies enabled. Install one set, reboot and test, install the next set, reboot and test again and so on.

Providing logs with armbianmonitor -u helps with troubleshooting and significantly raises chances that issue gets addressed.

Moved to beginners/general since this seems to be 3rd party application issue.

Never heard of that one before. Assuming random tv box. Moved.

Since those devices IIRC do not support boot from USB (at least not without having some sort of boot loader provided via SPI, eMMC or microSD) this task does not make much sense anyways.

If it is not in the archive then you are out of luck. We do not have any older images stored. https://stpete-mirror.armbian.com/archive/

Since no further specified assuming random TV box. Moved

Not sure if possible via software but you can edit the device tree file and turn off HDMI.

I suggest to to try with both supported kernel (current branch) and supported userspace (Bullseye) rather than experimental stuff.