I had the same black out problem with my HP f1703 monitor. I called HP tech support, and they are sending me a new power adapter.
They had me shine a flashlight to the monitor to see if I could detect the picture or wallpaper that my computer was showing. I could. The monitor was still under warranty.
The problem is not the monitor, but rather the power adapter that supplies power to the monitor back light.
Best Black Friday Deals
CNET editors are busy culling the list and highlighting what we think are the best deals out there this holiday season.