From b0f3b01ee83a7bfaa9038b9286ac0265aa082e52 Mon Sep 17 00:00:00 2001
From: Przemek Grondek <przemek@grondek.pl>
Date: Mon, 16 May 2022 22:29:33 +0200
Subject: [PATCH] Add scripts for dummy displays

 for remote streaming dummy display to external device
 like tablet or laptop
---
 bin/add-dummy-display    | 28 ++++++++++++++++++++++++++++
 bin/remove-dummy-display | 22 ++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100755 bin/add-dummy-display
 create mode 100755 bin/remove-dummy-display

diff --git a/bin/add-dummy-display b/bin/add-dummy-display
new file mode 100755
index 0000000..14c6dc4
--- /dev/null
+++ b/bin/add-dummy-display
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -x
+
+DUMMY_MONITOR="HDMI-A-0"
+
+killall compton
+
+xrandr --newmode "2384x1668_60.00"  338.02  2384 2560 2824 3264  1668 1669 1672 1726  -HSync +Vsync
+xrandr --addmode "$DUMMY_MONITOR" 2384x1668_60.00
+xrandr --output "$DUMMY_MONITOR" --mode 2384x1668_60.00 --below DisplayPort-0
+xrandr --output "$DUMMY_MONITOR" --scale 0.5x0.5
+
+
+# Workaround to disable flickering
+xrandr --output DisplayPort-0 --scale 0.9999x0.9999
+xrandr --output DVI-D-0 --scale 0.9999x0.9999
+
+compton &
+
+if test -f /usr/share/backgrounds/brad-huchteman-stone-mountain.jpg ; then
+   feh --bg-scale /usr/share/backgrounds/brad-huchteman-stone-mountain.jpg &
+else
+   if test -f /usr/share/backgrounds/gnome/Road.jpg ; then
+       feh --bg-scale /usr/share/backgrounds/gnome/Road.jpg &
+   fi
+fi
+
diff --git a/bin/remove-dummy-display b/bin/remove-dummy-display
new file mode 100755
index 0000000..0eacec0
--- /dev/null
+++ b/bin/remove-dummy-display
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+DUMMY_MONITOR=HDMI-A-0
+
+killall compton
+
+xrandr --output $DUMMY_MONITOR --off
+xrandr --delmode $DUMMY_MONITOR "2384x1668_60.00"
+
+# Remove workaround
+xrandr --output DisplayPort-0 --scale 1x1
+xrandr --output DVI-D-0 --scale 1x1
+
+compton &
+
+if test -f /usr/share/backgrounds/brad-huchteman-stone-mountain.jpg ; then
+   feh --bg-scale /usr/share/backgrounds/brad-huchteman-stone-mountain.jpg &
+else
+   if test -f /usr/share/backgrounds/gnome/Road.jpg ; then
+       feh --bg-scale /usr/share/backgrounds/gnome/Road.jpg &
+   fi
+fi