refreshVP.sh 3.29 KB
Newer Older
David Beniamine's avatar
David Beniamine committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
#!/bin/bash

# Copyright (C) 2015  Beniamine, David <David.Beniamine@tetras-libre.fr>
# Author: Beniamine, David <David.Beniamine@tetras-libre.fr>
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

# Get rights to access display
user=$(who | grep -v "root" | head -n 1 | cut -d ' ' -f 1)
if [ ! -z "$user" ]
then
	export DISPLAY=:0
	export XAUTHORITY="/home/$user/.Xauthority"
fi

David Beniamine's avatar
David Beniamine committed
27 28
DIR=$(realpath $(dirname $0))

29 30 31 32 33 34 35 36
# show max between two res
max_res(){
    [ -z "$2" ] && echo $1 && return
    first=$(echo $1 | sed 's/x/*/' | bc)
    second=$(echo $2 | sed 's/x/*/' | bc)
    [ $first -ge $second ] && echo $1 || echo $2
}

David Beniamine's avatar
David Beniamine committed
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
# Default main screens (external VGA or internal screen)
MAIN_SCREENS="DP-3 VGA-1 LVDS-1 eDP1"

# auto detect main screen
for m in $MAIN_SCREENS
do
	if [ ! -z "$(xrandr | grep " connected" | grep $m)" ]
	then
		MAIN_SCREEN=$m
		break
	fi
done

if [ -z "$MAIN_SCREEN" ]
then
	# No main screen : use the first connected
	MAIN_SCREEN=$(xrandr | grep " connected" | head -n 1 | cut -d ' ' -f 1)
fi

screens=$(xrandr | grep " connected" | cut -f 1 -d ' ' \
    | sed -e 's/ /\n/g' | grep -v $MAIN_SCREEN)

# Auto detect best resolution
for m in $(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=0} $0 ~ pattern {IN=1} /^ /{if(IN==1){print $1}}')
do
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
    # echo "testing mode $m"
    OTHERS=$(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=1} $0 ~ pattern {IN=0} {if(IN==1){print $1}}')
    if [ -z "$OTHERS" ]
    then
        # one screen look for best common resolution
        mode=$(max_res $m $mode)
    else
        # Several screen look for best common resolution
        for line in $OTHERS
        do
            # echo "line $line"
            if [[ $line =~ [0-9]* ]]
            then
                # New mode
                if [ "$line" == "$m" ]
                then
                    found=1
                fi
            else
                # New screen
                if [ "$found" == 0 ]
                then
                    break
                fi
                found=0
            fi
            # echo "Found ? $found"
        done
        if [ "$found" == 1 ]
        then
            mode="$m"
            break
        fi
    fi
David Beniamine's avatar
David Beniamine committed
96 97 98 99
done
# echo "mode $mode"

# Primary screen
100
cmd="xrandr --output $MAIN_SCREEN --auto --mode $mode --rotate normal --primary"
David Beniamine's avatar
David Beniamine committed
101 102 103 104 105

# Add all connected as copy
prev_s=$MAIN_SCREEN
for s in $(echo -e $screens)
do
106
    cmd="$cmd --output $s --auto --mode $mode --same-as $prev_s --rotate normal"
David Beniamine's avatar
David Beniamine committed
107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
    prev_s="$s"
done

# Disable all disconnected screens
screens=$(xrandr | grep " disconnected" | cut -f 1 -d ' ' )
for s in $(echo -e $screens)
do
	cmd="$cmd --output $s --off"
done

# Debug
# date >> /var/log/vp.log
# echo $cmd >>  /var/log/vp.log
# echo $cmd

# Actually do stuff
$cmd