I own a Steam Link, but the input lag is annoying in some FPS games, so I got a HDMI cable to connect my PC with the TV. When I sit in front of the TV I want to turn the SC on and have Big Picture start up on the TV. My PC display and the TV have different resolutions, thus I do not want to have the TV screen mirrored all the time.
So I am looking for a way to turn on the TV display (probably through a xrandr bash script). My problem right now is this:
How can I trigger a script upon Steam Controller On-Button?
I did not find anything on Google and have no clue where to start searching. Would this maybe be possible through a udev rule?
Bonus: Can the HDMI additionally request the TV's focus when another channel/input is selected on the TV?