A script to swap between 2 sets of audio+video outputs in KDE. Like TV+Desktop.

swapTV.sh

#!/usr/bin/env bash

# Enable/Activate both monitors and get info from `kscreen-doctor -o | grep -A3 Output` 
# Get audio sinks from `pactl list sinks short`

monitorMain="DP-2"
audioMain="alsa_output.pci-0000_0a_00.3.analog-stereo"
monitorTV="HDMI-0"
audioTV="alsa_output.pci-0000_08_00.1.hdmi-stereo"
fullSwap="false" # when set to false we'll only swap primary - not disable the secondary

currentPrimary=$(kscreen-doctor -o | grep -B 4 "priority 1" | awk '/Output/{ print $3 }')

if [[ "$currentPrimary" == "$monitorMain" ]]; then
  if [[ "$fullSwap" == "true" ]]; then 
    kscreen-doctor output.${monitorTV}.enable output.${monitorTV}.primary  output.${monitorMain}.disable
  else
    kscreen-doctor output.${monitorTV}.primary
  fi
  sleep 1
  pactl set-default-sink "${audioTV}"
  
else
  if [[ "$fullSwap" == "true" ]]; then 
    kscreen-doctor output.${monitorMain}.enable output.${monitorMain}.primary output.${monitorTV}.disable
  else
    kscreen-doctor output.${monitorMain}.primary 
  fi
  sleep 1
  pactl set-default-sink "${audioMain}"
fi