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#!/bin/bash
# Copyright 2009 Nicolas Bigaouette
# This file is part of acpi-eeepc-generic.
# http://code.google.com/p/acpi-eeepc-generic/
#
# acpi-eeepc-generic is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# acpi-eeepc-generic is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with acpi-eeepc-generic. If not, see <http://www.gnu.org/licenses/>.
#
# Toggle between available displays using xrandr
#
. /etc/acpi/eeepc/acpi-eeepc-generic-functions.sh
xrandr=`which xrandr`
if [ ! -e "$xrandr" ]; then
msg="Please install xorg-server-utils to be able
to use xrandr."
eeepc_notify "$msg" display
logger "$msg"
echo "$msg"
exit 0
fi
var_xrandr="$EEEPC_VAR/xrandr.log"
xrandr > $var_xrandr
current=$(grep -B 1 "*" $var_xrandr | head -n 1 | awk '{print ""$1""}')
connected=$(grep " connected " $var_xrandr | awk '{print ""$1""}')
disconnected=$(grep " disconnected " $var_xrandr | awk '{print ""$1""}')
all="$connected $disconnected"
name_lvds=$(grep -i connected $var_xrandr | grep -i lvds | awk '{print ""$1""}')
name_vga=""
if [ "x`echo $connected | grep -i VGA`" == "x" ]; then
vga_connected="no"
else
vga_connected="yes"
name_vga=$(grep -i connected $var_xrandr | grep -i vga | awk '{print ""$1""}')
vga_max_res=$(grep ${name_vga} -A 1 $var_xrandr | grep -v ${name_vga} | awk '{print ""$1""}')
fi
lvds_max_res=$(grep ${name_lvds} -A 1 $var_xrandr | grep -v ${name_lvds} | awk '{print ""$1""}')
# Define XRandR commands for each modes
xrandr_lvds="$xrandr --output ${name_lvds} --auto --output ${name_vga} --off"
xrandr_clone="$xrandr --output ${name_lvds} --auto --output ${name_vga} --auto"
xrandr_vga="$xrandr --output ${name_lvds} --off --output ${name_vga} --auto"
#xrandr_vga_and_lvds="$xrandr --output LVDS --auto --output ${name_vga} --auto --${COMMANDS_XRANDR_TOGGLE_VGA} ${name_lvds}"
xrandr_vga_and_lvds="$xrandr --auto --output ${name_vga} --mode ${vga_max_res} --${COMMANDS_XRANDR_TOGGLE_VGA} ${name_lvds}"
xrandr_lvds_name="Laptop screen only"
xrandr_clone_name="Clone"
xrandr_vga_name="VGA only"
xrandr_vga_and_lvds_name="VGA (${COMMANDS_XRANDR_TOGGLE_VGA/-/ }) laptop screen"
# Available modes and their name. Needs first to contain only LVDS.
modes=("${xrandr_lvds}" "${xrandr_lvds_name}")
# Now get the other available modes from the config file.
j=2
for ((i=0 ; i < ${#XRANDR_AVAILABLE_MODES[*]} ; i++)); do
mode=${XRANDR_AVAILABLE_MODES[i]}
case ${mode} in
"clone")
modes[j]="${xrandr_clone}"
modes[j+1]="${xrandr_clone_name}"
j=$(($j+2))
;;
"vga")
modes[j]="${xrandr_vga}"
modes[j+1]="${xrandr_vga_name}"
j=$(($j+2))
;;
"both")
modes[j]="${xrandr_vga_and_lvds}"
modes[j+1]="${xrandr_vga_and_lvds_name}"
j=$(($j+2))
;;
esac
done
# Get the number of modes of LVDS
lvds_nb_modes=$((`sed -n '/LVDS/,//p' $var_xrandr | wc -l` - 1))
# What is the actual LVDS mode?
actual_mode_lvds=`sed -n '/LVDS/,//p' $var_xrandr | grep "*" | awk '{print ""$1""}'`
# Get the position of LVDS
position_lvds=(`grep ${name_lvds} $var_xrandr | awk '{print ""$3""}' | sed "s|[0-9]*x[0-9]*+\(.*\)+\(.*\)|\1 \2|g"`)
#################################################################
function get_mode_index() {
detected_name="$1"
detected_i=0
for ((i=0 ; i < ${#modes[*]} ; i++)); do
if [[ "${modes[i]}" == "${detected_name}" ]]; then
detected_i=i
break
fi
done
# Name is detected. But we want the index of the mode command.
echo $(($detected_i - 1))
}
# Assume we are actually at modes[0] (LVDS only)
m=0
# If VGA is connected, check its mode, its parameters, etc.
if [[ "$vga_connected" = "yes" ]]; then
#echo "VGA connected. Trying to detect which configuration..."
# Get the number of modes of VGA
vga_nb_modes=$((`sed -n '/VGA/,/LVDS/p' $var_xrandr | wc -l` - 2))
# What is the actual VGA mode?
actual_mode_vga=`sed -n '/VGA/,/LVDS/p' $var_xrandr | grep "*" | awk '{print ""$1""}'`
# Get the position of VGA
position_vga=(`grep VGA $var_xrandr | awk '{print ""$3""}' | sed "s|[0-9]*x[0-9]*+\(.*\)+\(.*\)|\1 \2|g"`)
# If the position is detected (and awk/sed of previous line does not
# return a bogus value of '(normal'), detect which mode we actually use.
if [ "${position_vga}" != "(normal" ]; then
# Detect if we are at mode clone
if [[ \
"${position_lvds[0]}" == "0" && \
"${position_lvds[1]}" == "0" && \
"${position_vga[0]}" == "0" && \
"${position_vga[1]}" == "0" ]]; then
m=`get_mode_index "${xrandr_clone_name}"`
# Detect if we are at mode VGA only
elif [ "${position_lvds}" == "(normal" ]; then
m=`get_mode_index "${xrandr_vga_name}"`
# Detect if we are at mode VGA + LVDS
else
m=`get_mode_index "${xrandr_vga_and_lvds_name}"`
fi
m=$(($m/2))
fi
fi
#################################################################
function display_toggle() {
mc=$(($m*2)) # Index of mode's command
mn=$(($m*2 + 1)) # Index of mode's name
prev_mc=$(($m*2)) # Index of (previous) mode's command
prev_mn=$(($m*2 + 1)) # Index of (previous) mode's name
echo "Actual mode is ${modes[$mn]} (m=$m)"
if [ "$1" == "" ]; then
# We are at mode "m", go to next mode
m=$(($m + 1))
mc=$((mc + 2))
# Check for round-up
if [ "$mc" == "${#modes[*]}" ]; then
m=0
mc=0
fi
else
echo "Called with: $1"
m=$((`get_mode_index "$1"`/2))
mc=$(($m*2))
fi
mn=$(($mc + 1))
echo "Next mode will be ${modes[$mn]} (m=$m)"
xrandr_cmd="${modes[$mc]}"
echo "xrandr_cmd = ${xrandr_cmd}"
# return
if [ "${prev_mc}" == "${mc}" ]; then
eeepc_notify "Display already in '${modes[$mn]}' mode" video-display
return
fi
# If next mode is 0 (LVDS only), we really want to go there,
# whatever the state of the VGA is.
if [ "$m" == "0" ]; then
eeepc_notify "Changing display mode to: ${modes[$mn]}" video-display 10000
execute_commands "${xrandr_cmd}"
else
# Else, we check if VGA is connected: it does not make sense
# to activate it if it's not present.
if [ "$vga_connected" == "yes" ]; then
eeepc_notify "Changing display mode to '${modes[$mn]}' mode" video-display 10000
execute_commands "${xrandr_cmd}"
else
# If VGA is not connected, don't do anything
eeepc_notify "VGA not connected: not going to '${modes[$mn]}' mode" video-display
return
fi
fi
}
#################################################################
function display_debug() {
echo "Modes (${#modes[*]}):"
for ((i=0 ; i < ${#modes[*]} ; i=i+2)); do
echo "${modes[i+1]}: ${modes[i]}"
done
echo "All: ${all}"
echo "Connected: ${connected}"
echo "Disconnected: ${disconnected}"
echo "vga_connected = $vga_connected"
echo "current = $current"
echo "vga_nb_modes = $vga_nb_modes"
echo "lvds_nb_modes = $lvds_nb_modes"
echo "actual_mode_vga = $actual_mode_vga"
echo "actual_mode_lvds = $actual_mode_lvds"
echo "position_lvds = ${position_lvds[*]}"
echo "position_vga = ${position_vga[*]}"
xrandr
exit
}
#################################################################
case $1 in
lvds|Lvds|LVDS)
display_toggle "${xrandr_lvds_name}"
;;
clone|Clone|CLONE)
display_toggle "${xrandr_clone_name}"
;;
vga|Vga|VGA)
display_toggle "${xrandr_vga_name}"
;;
vga_and_lvds|both|Both|BOTH)
display_toggle "${xrandr_vga_and_lvds_name}"
;;
debug|Debug|DEBUG)
display_debug
;;
*)
display_toggle
;;
esac
### End of file #################################################
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