hyprland monitor configuration script

hypr-monitor

#!/bin/bash

# Usage: hypr-monitor [... OPTIONS DISPLAYNAME]
#
# The first available display will be the primary one (0x0 coordinates).
# Options always apply to the next display name
#
# All 
#
# Options:
#  --left  Align the display to the left.
#  --mirror [DISPLAYNAME]  Mirror the given display.
#
# Examples:
#   hypr-monitor laptop  # [!laptop]
#   hypr-monitor primary --left primary vertical  # [laptop] [!primary] [vertical]
#   hypr-monitor laptop --mirror laptop primary  # [laptop = primary]

###
### Setup: Modify for your monitor names & configurations
###

# list all monitors that can safely be addressed statically
monitors_known=(eDP-1 DP-3 HDMI-A-1)

declare -A name_alias
declare -A res
declare -A position
declare -A scale
declare -A transform

# define aliases of known monitor configurations
name_alias[other]=' '
name_alias[laptop]=eDP-1
name_alias[primary]=DP-3
name_alias[vertical]=HDMI-A-1

# Configuration: laptop
#res[laptop]=2240x1400@90
res[laptop]=highres
scale[laptop]=1.25

# Configuration: vertical
transform[vertical]=transform,3
position[vertical]=auto-center-right

# additional commands to run before display changes

pre_exec() {
  killall waybar 2>/dev/null
}

# additional commands to run after display changes
post_exec() {
  hyprctl dispatch exec waybar >/dev/null
  pidof hyprpaper >/dev/null || hyprctl dispatch exec hyprpaper >/dev/null
}

###
### Actual code; you should not need to modify anything below this line.
###

resolve_name() {
  echo "${name_alias[$1]:-$1}"
}

list_enabled_known_monitors() {
  _patterns=()
  for m in "${monitors_known[@]}"; do _patterns+=(-e "$m"); done
  hyprctl monitors -j | jq -r '.[].name' | grep -Fx "${_patterns[@]}"
}

# dispatch time in case we've been called by hyprland keybinds, etc.
sleep 0.1

pre_exec

monitors_enabled=($(list_enabled_known_monitors))
primary_name=
primary_line=
commands=()

_first=true
while [ $# -gt 0 ]; do
  _position=
  _res=
  _scale=
  _transform=

  while [ "${1:0:2}" = "--" ]; do
    opt="$1"; shift
    case "$opt" in
      --left) _position=auto-left;;
      --mirror) _transform=mirror,"$(resolve_name "$1")"; shift;;
    esac
  done

  name="$1"; shift

  cmdline="keyword monitor $(resolve_name "$name")"
  _position=${_position:-${position[$name]:-auto-right}}
  [ $_first = true -a "$(resolve_name "$name")" != " " ] && _position=0x0
  _res=${_res:-${res[$name]:-preferred}}
  _scale=${_scale:-${scale[$name]:-auto}}
  _transform=${_transform:-${transform[$name]}}

  cmdline+=",$_res,$_position,$_scale"
  [ -n "$_transform" ] && cmdline+=",$_transform"
  if [ $_first = true ]; then
    primary_name="$(resolve_name "$name")"
    primary_line="$cmdline"
  else
    commands+=("$cmdline")
  fi
  _first=false
done

# ensure the primary display is enabled, before doing anything else;
# hyprland crashes if a batch command disables all previously enabled
# monitors, even if the same batch would enable another monitor :/
echo "$ $primary_line"
hyprctl $primary_line
sleep 0.15

# disable (batch) all known monitors as we require them to be explicitly named in args
# also, hyprland doesn't reset display order if they're previously enabled
#concatline="; $primary_line"
#echo "$+ ${concatline:2}"
concatline=
monitors_enabled+=(" ")
for monitor in "${monitors_enabled[@]}"; do
  if [ "$monitor" != "$primary_name" ]; then
    concatline+="; keyword monitor $monitor,disable"
    echo "$+ keyword monitor $monitor,disable"
  fi
done
hyprctl --batch "${concatline:2}" >/dev/null && echo batch: ok
sleep 0.15

# since we set the first (primary) monitor explicitly at 0x0, up to two monitors can
# safely be batched w/o hyprland messing up the display order
if [ ${#commands[@]} -le 1 ]; then
  concatline=
  for line in "${commands[@]}"; do
    concatline+="; $line"
    echo "$+ $line"
  done
  hyprctl --batch "${concatline:2}" >/dev/null && echo batch: ok
  sleep 0.15
else
  for line in "${commands[@]}"; do
    echo "$ $line"
    hyprctl $line
    sleep 0.15
  done
fi

sleep 0.1

post_exec