Black Screen on Laptop

My laptop screen is black and will not show anything. I had to replace my hard drive and after that I plugged in the Plugable 3900 as usual, tried to connect with my external large monitor and it would not recognize it. Then I hit Windows-P and selected second monitor. The first time it didn’t work, then I tried it again and my laptop screen went black, but the second monitor did not display. Now I can’t see anything on my laptop, even after holding down the power key several times and restarting. So I cant use my laptop at all to download drivers or anything.

Hi Valerie,

Thanks for posting. As you have already contacted us directly via, we’ll continue to work with you directly (I just sent my most recent reply)

Thank you,

Plugable Technologies