Install external screen with primary screen not working

[Idontknow_10]

I have an hp tx 1000 and the main display does not work. How can I hook up an external screen when I can't get to any of the options?

Thanks!

 

[PhilFrisbie]

Use the key sequence fn+F4 to toggle to the external monitor.

 

[Idontknow_10]

I've tried that already. I have hit it multiple times with a couple if minutes in between with no luck.

 

[PhilFrisbie]

Then your video chip may have failed