pg279q-rate-switch.sh

#!/bin/bash
set -x
DISPLAY=:0.0

# v 1.0

# This script switches the refresh rate on the PG279Q monitor, from 60 (referenced as 59.95) and 165
# This is done because Nvidia likes to bump up the clock speed when running at the higher rate, even when idle

toggle()
(
  if [[ $(xrandr|awk '/2560x1440/{while (!match ($0,"59.95*+")) getline; print $2; exit;}') == "59.95*+" ]]
    then
      xrandr --output DP-0 --mode 2560x1440 --rate 165
      notify-send "PG279Q" "Monitor is now set to 165 hz"
    else
      xrandr --output DP-0 --mode 2560x1440 --rate 60
      notify-send "PG279Q" "Monitor is now set to 60 hz"
  fi
)

drop()
(
  if [[ $(xprintidle) -gt 900000 && $(xrandr|awk '/2560x1440/{while (!match ($0,"59.95*+")) getline; print $2; exit;}') != "59.95*+" ]]
    then
      xrandr --output DP-0 --mode 2560x1440 --rate 60
      notify-send "PG279Q" "Monitor was automatically set to 60hz due to user inactivity"
  fi
)

case $1 in
    toggle)toggle;;
      drop)drop;;
         *)echo "No valid command specified";
           notify-send "PG279Q: Error" "No valid command specified";;
esac