VirtScreen

Make your iPad/tablet/computer as a secondary monitor on Linux.

VirtScreen is an easy-to-use Linux GUI app that creates a virtual secondary screen and shares it through VNC.

VirtScreen is based on PyQt5 and Twisted in Python side and uses x11vnc and XRandR.

How to use

Upon installation (see Installing section to install), there will be a desktop entry called VirtScreen

Or you can run it using a command line:

$ virtscreen

Installation

Debian (Ubuntu)

.deb package

sudo apt-get update
sudo apt-get install x11vnc qtbase5-dev
wget https://github.com/kbumsik/VirtScreen/releases/download/0.2.0/virtscreen_0.2.0-1_all.deb
sudo dpkg -i virtscreen_0.2.0-1_all.deb 
rm virtscreen_0.2.0-1_all.deb

Arch Linux (AUR)

There is virtscreen AUR package available. Though there are many ways to install the AUR package, one of the easiest way is to use aurman AUR helper:

aurman -S virtscreen

Python pip

If your distro is none of above, you may install it using pip. In this case, you need to install the dependancies manually.

You need x11vnc, xrandr, and PyQt5 libraries. To install (e.g. on Ubuntu):

sudo apt-get install x11vnc qtbase5-dev  # On Debian/Ubuntu, xrandr is included.

After you install the dependancies then run:

sudo pip install virtscreen