switcher

#!/bin/sh

# NVIDIA_DRIVER_VER scans dpkg to guess the version, below is static value if you prefer

export MY_USER=maquis196
export NVIDIA_DRIVER_VER=`dpkg -l | grep binary\ driver | gawk '{print $2}'`
#export NVIDIA_DRIVER_VER=nvidia-331-updates
export NVIDIA_MOD_NAME=`echo $NVIDIA_DRIVER_VER | sed s/-/_/g`
#export GUI=`echo $XDG_CURRENT_DESKTOP`
#export GUI='XFCE4'

if [ -z $NVIDIA_DRIVER_VER ]; then
  echo "NVIDIA_DRIVER_VER is unset, please check binary drivers are installed or set manually"
  exit 1
else
  echo "setting driver version to $NVIDIA_DRIVER_VER"
fi

if [ -z $GUI ]; then
  echo "GUI is unset, please manually set"
  exit 1
else
  echo "setting gui to $GUI"
fi



if [ $# = 0 ]; then
  echo 
  echo "Use the one of following commands:"
  echo
  echo "1) Switch to nvidia prime"
  echo "2) Switch to intel graphics"
  echo

 read command

  if [ "$command" = "1" ]; then
  sudo -E nohup "$0" nvidia
  fi

  if [ "$command" = "2" ]; then
  sudo -E nohup "$0" intel
  fi

  exit
fi


if [ `whoami` != "root" ]; then
  echo "You must run it as root";
  exit
fi


if [ "$1" = "nvidia" ]; then

  service lightdm stop

  echo "ON" > /proc/acpi/bbswitch
  sleep 2
  modprobe $NVIDIA_DRIVER_VER

  cp /etc/X11/xorg.conf-nvidia /etc/X11/xorg.conf
  echo 'xrandr --setprovideroutputsource modesetting NVIDIA-0 && xrandr --auto' > /home/$MY_USER/.xsessionrc

  echo "start on runlevel [2345]' > /etc/init/nvidia-moja.conf
  echo " script' >> /etc/init/nvidia-moja.conf
  echo " echo "ON" > /proc/acpi/bbswitch' >> /etc/init/nvidia-moja.conf
  echo " modprobe $NVIDIA_DRIVER_MOD" >> /etc/init/nvidia-moja.conf
  echo "end script" >> /etc/init/nvidia-moja.conf

  update-alternatives --set x86_64-linux-gnu_gl_conf /usr/lib/$NVIDIA_DRIVER_VER/ld.so.conf
  update-alternatives --set i386-linux-gnu_gl_conf /usr/lib/$NVIDIA_DRIVER_VER/alt_ld.so.conf

  ldconfig

  service lightdm restart
fi


if [ "$1" = "intel" ]; then

  service lightdm stop

  if [ -e /etc/X11/xorg.conf ]; then
   rm /etc/X11/xorg.conf
  else
   echo "xorg.conf not present. Skipping"
  fi
  echo > /home/$MY_USER/.xsessionrc
  if [ -e /etc/init/nvidia-moja.conf ]; then
   rm /etc/init/nvidia-moja.conf
  else
   echo "nvidia-moja.conf not present. Skipping"
  fi

  update-alternatives --set x86_64-linux-gnu_gl_conf /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf
  update-alternatives --set i386-linux-gnu_gl_conf /usr/lib/i386-linux-gnu/mesa/ld.so.conf

  echo "OFF" > /proc/acpi/bbswitch
  sleep 2
  rmmod $NVIDIA_DRIVER_MOD

  ldconfig

  service lightdm restart

fi