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#!/bin/bash
#
# Wrapper around xrandr to set screen resolution.
#
# Parameters
BASENAME="`basename $0`"
X="$1"
Y="$2"
# Check
if [ -z "$Y" ]; then
echo "usage: $BASENAME <x-res> <y-res>"
exit 1
elif ! which cvt &> /dev/null; then
echo "please install cvt from xserver-xorg-core"
exit 1
elif ! which xrandr &> /dev/null; then
echo "please install xrandr from x11-xserver-utils"
exit 1
fi
# Get modeline and interface
MODELINE="`cvt $X $Y | grep -v '^#' | sed -e 's/^Modeline //'`"
INTERFACE="`xrandr | grep " connected" | cut -d ' ' -f 1 | head`"
NAME="`echo $MODELINE | cut -d ' ' -f 1 | sed -e 's/"//g'`"
# Add modeline
if ! xrandr | grep -q $NAME; then
xrandr --newmode $MODELINE
fi
# Apply
xrandr --addmode $INTERFACE $NAME
xrandr --output $INTERFACE --mode $NAME
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