Archive for the Android Tips and Tricks Category

Using android device as secondary monitor

Posted in Android, Android Tips and Tricks with tags , on March 2, 2011 by deliveryninja

I was doing some investigation on how to use the android device as a secondary monitor and couldn’t find anything. Also using the usb to pc connection is a no no so I couldn’t code anything up for it. It has to be http which was bound to be rubbish.

Anyway I had a look at how the ipad worked as secondary monitor on a mac. It uses a fake display driver to create a second monitor then just uses vnc to display the secondary screen. Not difficult to do on the android device.

Check these links to get a secondary monitor running without having to actually have one.

Secondary Monitor on Windows 7 (

Faking a dual monitor (

Heres some pics of it running

Pic 1

Pic 2

Pic 3

Ok so its a bit hacky, but once you get it running its fine.

First I downloaded android vnc client which is free and open source so lets hope it gets better.

Follow the instructions on there to set-up Tight VNC as well as your host application.

Tight VNC

Make sure to set the timing on Tight VNC to 100ms not 1000ms!
Make sure to set the colours on android vnc to 24bit (assuming your on your home network)

I set up a 2nd screen in windows by having a vga cable from my 9800GTX to a old projector. It doesn’t have to be on to do this. I then set the res to 800×600.

I had to mess around placing on my gadgets and positioning and zooming the screen on android vnc first time round. Will be much quicker now my widgets are in place.

Its not good for video but for gadgets it works fine. I tried to find a way to emulate the G19 gaming keyboard colour lcd screen and supposidly if you install the G15 drivers and hold ctrl and shift you can get the LCD emulator but I couldn’t get it to work.



remember to set your phone to no screen off when charging or to a delay of 30 minutes so it does not turn your screen off.

I’ve also tried this with logmein as well and it works quite well with that too. The advantage is you can select the screen res and also the monitor to use.

If you do not use the phone then logmein will time-out after a short period of time. Also it does not work over local networks so you must go through the net.