I got irritated with the HDMI-CEC connection between my entertainment-PC, Marantz AVR, and TV. Its sluggish, and sometimes doesn’t respond to my commands sent over libcec.

So I decided to fix it myself, at least enough for it to fit into my special setup. My entertainment setup involves a minimized SwayWM setup, without a waybar, a wireless keyboard and a bluetooth remote. I prefer the setup tight and without many obstructions. Only a visual application launcher, usable with gamepads/joystics too, and a few other programs, like a web browser and terminal.

I already use wob to print the current volume on the screen and thought about making similar light daemon that connects to and controls my AVR using the RS-232C, simply to minimize transport delay and not having to maintain a TELNET socket.

So I did; avr-utils

The project only has a daemon, and a few caveats that needs fixed in due time. It keeps the known state of the AVR and act accordingly upon commands. It is rather opinionated at the moment, and not made for everyone’s taste.

I am already pleased with it, and plan to work out more features it. Like charging the speaker setup and configuration based on which program is currently running on the PC.