ScottE

Strange! Nothing jumps out at me as being an obvious problem with your setup. I'm doing something similar, though instead of rtlamr2mqtt (which I didn't know about) I have a bash script run via cron that parses rtlamr output via jq and pipes that to mqtt (mosquitto), but there's very little to it. I know the energy dashboard setup is picky about the energy recording entities.

Mine looks like:

state_class: total_increasing
unit_of_measurement: ft³
device_class: gas
friendly_name: Gas Meter

The name of the entity is sensor.gas_meter and the state is currently 113812 as an example.

Might be worth reading through GitHub issues for rtlamr2mqtt, including closed ones, if you haven't already. Or maybe a hass restart? Can't think of anything else.

Your root filesystem is NTFS? That's likely the problem - I'm surprised it boots at all. Switching to a Linux filesystem is the likely solution. You could also try a newer kernel, too - 5.10 is quite old, current LTS is 6.1. Good luck.

Give each screen other than the "main" one a relative position - left-of or right-of, I think that should do it.

X11 is also just a protocol, and will live on with or without Xorg.

You'll be fine as long as you maintain the system, don't wait too long between updates, and pay attention to the output when you do. I'm running arch on everything - work laptop, a spare laptop, and a server (nas, Plex, home assistant, etc) - two of which are critical systems for me. I use ZFS for all storage pools, including root, and zfsbootmenu, so I can rollback to a previous snapshot if I ever need to or the system won't boot.

It's not really worth it, honestly. All netplan does is generate a config for systemd-networkd. It's better to just configure systemd-networkd directly and have a portable configuration, rather than use Canonical's proprietary stuff. The documentation is quite good for systemd in general, and with more people using it directly for network config it's easier to find examples when you need help.

This isn't an issue with hackers though - this is people legitimately using the devices that they paid for with Home Assistant and other automation systems.

No, it's a pointless exercise that makes no sense.

FreeCAD. It'll do everything, but you have to put some time into understanding it. Fortunately, there's are plenty of YouTube videos when you do get stuck.

Ah, I thought you were displaying on both outputs, not switching between them, hence my mirroring comment. I suspect XFCE, not the DM, detects the output change and takes care of it. You might need to emulate that behavior with a hook of some type that you have to setup yourself with the tiling WM, and you might have to --off the unused display. I'd be willing to bet you can find some sort of hook script out there that can do this, I seem to recall an autorandr program I used in the past where you could set up output profiles. I hope that helps, maybe a little bit.

Most major Linux distributions use systemd-resolved for DNS but there is no utility for changing its configuration.

Nor should there be. That's what the configuration files are for, and the utility to edit them is the editor of your choice.

It's just the same thing as man -k.