Q Light Controller+

I want to use following enviroment:

Notebook 1: QLC+ = Controlling all DMX-Fixtures and shows - is an old notebook with only one VGA-Output
Notebook 2: Windows 7 - should only play all the videos synced with sound and light

Reasons why I use two notebooks:
a) Notebook 2 is my working notebook and Notebook 1 is configured to only use with QLC+
b) I have a Enviroment with a SDI-Matrix switcher and I didn´t find a Converter VGA2SDI

So, which idea can be help me?

Use artnet to make the connection between your 2 laptops.
in QLC+(1) create some dummy dimmers in the universe where artnet info is outputted.
On QLC+(2) create an artnet input where you listen to messages from QLC+(1)
Let QLC+(1) trigger your video's on QLC+(2)

my 2 cents?

Thank you for the brief explanation, but I need some more help

I dont know how i configure the triggering in QLC+(2)

I have add a Video and create a chaser with this video. The Hold-Time is set to the video length

How can I triggert the playing? Which fixture i must used or must I create a new show?