commit a984dfeb2bd1319e07d3a1a967d9a0b20a55f0e5
from: Matthias Schmidt <schmidt.m@1und1.de>
date: Mon Jul 01 11:57:51 2013 UTC

initial commit of dtoggle.sh

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commit + a984dfeb2bd1319e07d3a1a967d9a0b20a55f0e5
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blob + a3d817e3e890ecd1232f5f23dea1d73d1b50470a (mode 644)
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+++ README.md
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+Quick-n-dirty hack to use xrandr to configure internal/external displays
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blob + c1bce00035d7a19140741a5574d8b1fa52c07453 (mode 755)
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+++ dtoogle.sh
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+#!/bin/bash
+
+# Quick-n-dirty script to turn external/internal displays on/off with xrandr
+#
+# 2013 by Matthias Schmidt <xhr giessen.ccc.de>
+#
+# License GNU GPL
+
+# -----------------------------------------------------------------------
+# Add your own additional options for xrandr here
+# -----------------------------------------------------------------------
+XRANDROPTS="--dryrun"
+# -----------------------------------------------------------------------
+
+
+function choose_profile()
+{
+  local PROFILE=$1
+
+  case "$PROFILE" in
+    # Home profile: Internal on, external extended
+    home)
+      INTERN="LVDS1"
+      EXTERN[0]="HDMI1"
+      ;;
+    # Work profile: Internal off, both external displays on
+    work)
+      INTERN="LVDS1"
+      EXTERN[0]="HDMI3"
+      EXTERN[1]="HDMI2"
+      ;;
+    # Projector profile: Internal on, external VGA extended
+    vga)
+      INTERN="LVDS1"
+      EXTERN[0]="VGA1"
+      ;;
+    # -----------------------------------------------------------------------
+    # Add your own profiles here.
+    # -----------------------------------------------------------------------
+    # name)
+    #   INTERN="LVDS1"
+    #   EXTERN[0]="VGA1"
+    #   ...
+    #   ;;
+    # -----------------------------------------------------------------------
+    *)
+      usage
+      echo "ERROR: Profile not found"
+      exit 1
+      ;;
+  esac
+
+  # Only enable the internal display
+  if [ $IFLAG -eq 1 ]; then
+    build_xrandr_string "--auto" "--off"
+  # Clone screen on all displays
+  elif [ $CFLAG -eq 1 ]; then
+    RES=`xrandr -q | egrep "^ *[0-9]*x[0-9]*" | awk {'print $1'} | sort -g -r | uniq -d | head -1`
+    build_xrandr_string "--mode $RES" "--same-as $INTERN"
+  # Turn internal display off
+  elif [ $EFLAG -eq 1 ]; then
+    build_xrandr_string "--off" "--auto" "--left-of"
+  # Internal on and extend screen on all displays by default
+  else
+    build_xrandr_string "--auto" "--auto"
+  fi
+}
+
+function build_xrandr_string()
+{
+  local DOINTERN=$1
+  local DOEXTERN=$2
+  local POSITION=$3
+
+  CMD="xrandr --output $INTERN $DOINTERN "
+
+  CMDEXT=
+  i=0
+  for d in ${EXTERN[*]}; do
+    if [ $CFLAG -eq 1 ]; then
+      CMDEXT="${CMDEXT} --output ${DOEXTERN} --mode ${RES}"
+    elif [ ! -z $POSITION ]; then
+      # xrandr --output $INTERN --auto --output $EXTERN --auto --right-of $INTERN
+      if [ $i -eq 0 ]; then
+        CMDEXT="${CMDEXT} --output $d ${DOEXTERN} ${POSITION} $INTERN"
+      else
+        CMDEXT="${CMDEXT} --output $d ${DOEXTERN} ${POSITION} ${EXTERN[i-1]}"
+      fi
+    else
+      CMDEXT="${CMDEXT} --output $d ${DOEXTERN} ${POSITION}"
+    fi
+    i=$(($i + 1))
+  done
+
+  CMD="$CMD $CMDEXT"
+  echo $CMD
+}
+
+function run_xrandr()
+{
+  exec "$CMD XRANDROPTS"
+}
+
+function usage()
+{
+  echo "$0 [-ceim] [-p profile]"
+  echo
+  echo " -c           Clone screen on all displays"
+  echo " -e           Enable external display(s) and disable internal"
+  echo " -i           Enable only the internal display"
+  echo " -m           Show all available modes"
+  echo
+  echo " -p profile   Enable the specified profile"
+  echo
+  echo "DEFAULT: Extend screen to all displays"
+  echo
+}
+
+CMD=
+PROFILE=
+INTERN=
+RES=
+EXTERN[0]=
+EXTERN[1]=
+EXTERN[2]=
+EXTERN[3]=
+
+# Clone screen on all displays
+CFLAG=0
+# Enable only external displays
+EFLAG=0
+# Enable only the internal display
+IFLAG=0
+
+while getopts "ciemp:" opt; do
+  case $opt in
+    c)
+      CFLAG=1
+      ;;
+    i)
+      IFLAG=1
+      ;;
+    e)
+      EFLAG=1
+      ;;
+    m)
+      exec xrandr -q
+      ;;
+    p)
+      [ ! -z "$OPTARG" ] && PROFILE=$OPTARG
+      ;;
+    *)
+      usage
+      exit 1
+      ;;
+  esac
+done
+
+if [ $((CFLAG + $IFLAG + $EFLAG)) -gt 1 ]; then
+  usage
+  echo "Please specify either -c or -e or -i"
+  exit 1
+fi
+
+choose_profile $PROFILE
+run_xrandr
+
+exit $?
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