291 lines
7.6 KiB
Plaintext
291 lines
7.6 KiB
Plaintext
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#!/bin/sh
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#
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# Automatically select a display configuration based on connected devices
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#
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# Stefan Tomanek <stefan.tomanek@wertarbyte.de>
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#
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# How to use:
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#
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# Save your current display configuration and setup with:
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# $ autorandr --save mobile
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#
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# Connect an additional display, configure your setup and save it:
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# $ autorandr --save docked
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#
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# Now autorandr can detect which hardware setup is active:
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# $ autorandr
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# mobile
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# docked (detected)
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#
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# To automatically reload your setup, just append --change to the command line
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#
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# To manually load a profile, you can use the --load <profile> option.
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#
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# autorandr tries to avoid reloading an identical configuration. To force the
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# (re)configuration, apply --force.
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#
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# To prevent a profile from being loaded, place a script call "block" in its
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# directory. The script is evaluated before the screen setup is inspected, and
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# in case of it returning a value of 0 the profile is skipped. This can be used
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# to query the status of a docking station you are about to leave.
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#
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# If no suitable profile can be identified, the current configuration is kept.
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# To change this behaviour and switch to a fallback configuration, specify
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# --default <profile>
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#
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# Another script called "postswitch "can be placed in the directory
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# ~/.autorandr as well as in all profile directories: The scripts are executed
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# after a mode switch has taken place and can notify window managers or other
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# applications about it.
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#
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#
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# While the script uses xrandr by default, calling it by the name "autodisper"
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# or "auto-disper" forces it to use the "disper" utility, which is useful for
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# controlling nvidia chipsets. The formats for fingerprinting the current setup
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# and saving/loading the current configuration are adjusted accordingly.
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XRANDR=/usr/bin/xrandr
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DISPER=/usr/bin/disper
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XDPYINFO=/usr/bin/xdpyinfo
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PROFILES=~/.autorandr/
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CONFIG=~/.autorandr.conf
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CHANGE_PROFILE=0
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FORCE_LOAD=0
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DEFAULT_PROFILE=""
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SAVE_PROFILE=""
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FP_METHODS="setup_fp_xrandr_edid setup_fp_sysfs_edid"
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CURRENT_CFG_METHOD="current_cfg_xrandr"
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LOAD_METHOD="load_cfg_xrandr"
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SCRIPTNAME="$(basename $0)"
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# when called as autodisper/auto-disper, we assume different defaults
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if [ "$SCRIPTNAME" = "auto-disper" ] || [ "$SCRIPTNAME" = "autodisper" ]; then
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echo "Assuming disper defaults..." >&2
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FP_METHODS="setup_fp_disper"
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CURRENT_CFG_METHOD="current_cfg_disper"
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LOAD_METHOD="load_cfg_disper"
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fi
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if [ -f $CONFIG ]; then
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echo "Loading configuration from '$CONFIG'" >&2
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. $CONFIG
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fi
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setup_fp_xrandr_edid() {
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$XRANDR -q --verbose | awk '
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/^[^ ]+ (dis)?connected / { DEV=$1; }
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$1 ~ /^[a-f0-9]+$/ { ID[DEV] = ID[DEV] $1 }
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END { for (X in ID) { print X " " ID[X]; } }'
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}
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setup_fp_sysfs_edid() {
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# xrandr triggers the reloading of EDID data
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$XRANDR -q > /dev/null
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# hash the EDIDs of all _connected_ devices
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for P in /sys/class/drm/card*-*/; do
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# nothing found
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[ ! -d "$P" ] && continue
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if grep -q "^connected$" < "${P}status"; then
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echo -n "$(basename "$P") "
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md5sum ${P}edid | awk '{print $1}'
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fi
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done
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}
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setup_fp_disper() {
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$DISPER -l | grep '^display '
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}
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setup_fp() {
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local FP="";
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for M in $FP_METHODS; do
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FP="$($M)"
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if [ -n "$FP" ]; then
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break
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fi
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done
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if [ -z "$FP" ]; then
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echo "Unable to fingerprint display configuration" >&2
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return
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fi
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echo "$FP"
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}
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current_cfg_xrandr() {
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local PRIMARY_SETUP="";
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if [ -x "$XDPYINFO" ]; then
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PRIMARY_SETUP="$($XDPYINFO -ext XINERAMA | awk '/^ head #0:/ {printf $3 $5}')"
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fi
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$XRANDR -q | awk -v primary_setup="${PRIMARY_SETUP}" '
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# display is connected and has a mode
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/^[^ ]+ connected [^(]/ {
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split($3, A, "+");
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print "output "$1;
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print "mode "A[1];
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print "pos "A[2]"x"A[3];
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if ($4 !~ /^\(/) {
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print "rotate "$4;
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}
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if (A[1] A[2] "," A[3] == primary_setup)
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print "primary";
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next;
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}
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# disconnected or disabled displays
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/^[^ ]+ (dis)?connected / ||
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/^[^ ]+ unknown connection / {
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print "output "$1;
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print "off";
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next;
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}'
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}
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current_cfg_disper() {
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$DISPER -p
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}
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current_cfg() {
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$CURRENT_CFG_METHOD;
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}
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blocked() {
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local PROFILE="$1"
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[ ! -x "$PROFILES/$PROFILE/block" ] && return 1
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"$PROFILES/$PROFILE/block" "$PROFILE"
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}
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config_equal() {
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local PROFILE="$1"
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if [ "$(cat "$PROFILES/$PROFILE/config")" = "$(current_cfg)" ]; then
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echo "Config already loaded"
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return 0
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else
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return 1
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fi
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}
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load_cfg_xrandr() {
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sed 's!^!--!' "$1" | xargs $XRANDR
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}
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load_cfg_disper() {
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$DISPER -i < "$1"
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}
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load() {
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local PROFILE="$1"
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local CONF="$PROFILES/$PROFILE/config"
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if [ -e "$CONF" ] ; then
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echo " -> loading profile $PROFILE"
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$LOAD_METHOD "$CONF"
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[ -x "$PROFILES/$PROFILE/postswitch" ] && \
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"$PROFILES/$PROFILE/postswitch" "$PROFILE"
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[ -x "$PROFILES/postswitch" ] && \
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"$PROFILES/postswitch" "$PROFILE"
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fi
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}
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help() {
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cat <<EOH
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Usage: $SCRIPTNAME [options]
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-h, --help get this small help
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-c, --change reload current setup
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-s, --save <profile> save your current setup to profile <profile>
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-l, --load <profile> load profile <profile>
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-d, --default <profile> make profile <profile> the default profile
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--force force (re)loading of a profile
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--fingerprint fingerprint your current hardware setup
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--config dump your current xrandr setup
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To prevent a profile from being loaded, place a script call "block" in its
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directory. The script is evaluated before the screen setup is inspected, and
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in case of it returning a value of 0 the profile is skipped. This can be used
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to query the status of a docking station you are about to leave.
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If no suitable profile can be identified, the current configuration is kept.
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To change this behaviour and switch to a fallback configuration, specify
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--default <profile>.
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Another script called "postswitch "can be placed in the directory
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~/.autorandr as well as in any profile directories: The scripts are executed
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after a mode switch has taken place and can notify window managers.
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When called by the name "autodisper" or "auto-disper", the script uses "disper"
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instead of "xrandr" to detect, configure and save the display configuration.
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EOH
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exit
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}
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# process parameters
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OPTS=$(getopt -n autorandr -o s:l:d:cfh --long change,default:,save:,load:,force,fingerprint,config,help -- "$@")
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if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
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eval set -- "$OPTS"
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while true; do
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case "$1" in
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-c|--change) CHANGE_PROFILE=1; shift ;;
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-d|--default) DEFAULT_PROFILE="$2"; shift 2 ;;
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-s|--save) SAVE_PROFILE="$2"; shift 2 ;;
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-l|--load) LOAD_PROFILE="$2"; shift 2 ;;
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-h|--help) help ;;
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--force) FORCE_LOAD=1; shift ;;
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--fingerprint) setup_fp; exit 0;;
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--config) current_cfg; exit 0;;
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--) shift; break ;;
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*) echo "Error: $1"; exit 1;;
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esac
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done
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CURRENT_SETUP="$(setup_fp)"
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if [ -n "$SAVE_PROFILE" ]; then
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echo "Saving current configuration as profile '${SAVE_PROFILE}'"
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mkdir -p "$PROFILES/$SAVE_PROFILE"
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echo "$CURRENT_SETUP" > "$PROFILES/$SAVE_PROFILE/setup"
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$CURRENT_CFG_METHOD > "$PROFILES/$SAVE_PROFILE/config"
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exit 0
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fi
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if [ -n "$LOAD_PROFILE" ]; then
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CHANGE_PROFILE=1 FORCE_LOAD=1 load "$LOAD_PROFILE"
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exit $?
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fi
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for SETUP_FILE in $PROFILES/*/setup; do
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if ! [ -e $SETUP_FILE ]; then
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break
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fi
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PROFILE="$(basename $(dirname "$SETUP_FILE"))"
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echo -n "$PROFILE"
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if blocked "$PROFILE"; then
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echo " (blocked)"
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continue
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fi
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FILE_SETUP="$(cat "$PROFILES/$PROFILE/setup")"
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if [ "$CURRENT_SETUP" = "$FILE_SETUP" ]; then
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echo " (detected)"
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if [ "$CHANGE_PROFILE" -eq 1 ]; then
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if [ "$FORCE_LOAD" -eq 1 ] || ! config_equal "$PROFILE"; then
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load "$PROFILE"
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fi
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fi
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# found the profile, exit with success
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exit 0
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else
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echo ""
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fi
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done
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# we did not find the profile, load default
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if [ -n "$DEFAULT_PROFILE" ]; then
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echo "No suitable profile detected, falling back to $DEFAULT_PROFILE"
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load "$DEFAULT_PROFILE"
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fi
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exit 1
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