[sudo-discuss] Jitsi telescreen setup in sudoroom!

I've set up a jitsi terminal on the wall in Sudoroom! It's a big TV made by Hitachi, and it has a feature where it can go into "power saving" mode when the HDMI signal is lost. That means the screen can power down when DPMS puts the monitor to "sleep". It has a webcam that's clearly labeled, and on a hinge so it can easily be aimed down at the floor if people are shy, and it has a Jabra USB speaker/microphone thing which should hopefully provide good speakerphone functionality. I have the computer setup to start firefox, and i have firefox set to open the jitsi page, where permissions are already enabled for webcam/audio. The only remaining need is to automatically wake the monitor from sleep (using "DISPLAY=:0 xset force dpms on") whenever there is anyone else detected in the jitsi "room" This feature is important so that people can see (on the screen) whenever someone is in the screen/camera/microphone with them. For now the monitor is either left on a lot, or blanks out due to a timeout. I've determined that the most direct ways to make the monitor turn on when anyone joins the jitsi channel are: 1. make an XMPP client in python or something, which connects to the server and finds out how many people are in the room (and whether there's anyone other than the telescreen in there) and sets the monitor on/off state accordingly 2. make a browser extension to find the element containing the number of "Meeting participants" and copy the number to the window title, where it can be observed from the shell with a command like wmctrl -l <div class="jss52">Meeting participants (2)</div> unfortunately the div class is not always jss52 but the innertext is always Meeting Participans(#) so it should be able to be found. The idea is that with this setup, people can go on jitsi and talk to whomever is in sudoroom, as well as each other. presently i'm using this link but that can change if we find something better: https://meet.waag.org/turtlesturtlesturtles note: the telescreen in sudoroom is not signed in right now, not sure why but i'll fix it asap