new pic - x11vnc

x11vnc-remote-extended-display/README.md

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+# Use another device as an auxiliary display for a xorg GNU/Linux
+With x11vnc, you can use your another device as a display that extends or mirrors your xorg GNU/Linux desktop.
+
+![extended-pic.jpg](img/extended-pic.jpg)
+
+## Get ready.
+- Before continuing, Make sure that your GNU/Linux system is running X Display server and connected to the same network.
+- You can use x11vnc wirelessly, but to keep connection stable, Connect your another device to wired network other either by Ethernet or USB Tethering.
+
+If you dont want to use other deivce keyboard, mouse or trackpad to control your GNU/Linux system you can enable view only mode in VNC settings.
+
+![arandr-ss.png](img/arandr-ss.png)

x11vnc-remote-extended-display/extended-display.sh

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+#!/bin/bash
+
+dependency_check(){
+  for DEPENDENCY; do
+    if ! command -v "$DEPENDENCY" 1>/dev/null; then
+     printf "%s not found. Please install it.\n" "$DEPENDENCY" >&2
+      exit 2
+    fi
+    done
+  unset DEPENDENCY
+}
+dependency_check arandr x11vnc xrandr gtf
+
+read -p 'Enter client width: ' CLIENT_WIDTH
+read -p 'Enter client heigh: ' CLEINT_HEIGHT
+read -p 'Enter client refresh rate: ' REFRESH_RATE
+
+MODELINE=$(gtf $CLIENT_WIDTH $CLEINT_HEIGHT $REFRESH_RATE | grep Modeline | sed 's/Modeline//') #resolution of client machine (width, height, refreshrate)
+RESOLUTION=$(echo $MODELINE | awk '{print $1}')
+echo "---------------"
+echo $MODELINE
+echo "---------------"
+read -p 'enter the above Modeline: ' MODELINE
+xrandr --newmode $MODELINE
+
+echo Checking avaible ports..
+echo "---------------"
+xrandr | grep disconnected | awk '{print $1}'
+echo "---------------"
+read -p 'Enter one of the ports to be used for VNC: ' PORT
+
+echo Adding new display
+xrandr --addmode $PORT $RESOLUTION
+sleep 2
+echo Activating new display
+sleep 2
+xrandr --output $PORT --mode $RESOLUTION
+echo  "---------------"
+echo Configure the new diplay where you want
+echo  "---------------"
+sleep 3
+arandr >> /dev/null
+GEO=$(xrandr | grep $PORT | awk '{print $3}')
+echo Starting VNC Server
+sleep 3
+x11vnc -clip $GEO