Why Does My Hp Chromebook Screen Go Black. Press and hold the Power key until the power light shuts off and then press the Power key again to turn it back on. This may take at least 15 times.

Hi My daughter has a Chromebook about 18 months old this morning when she turned it on their were lots of vertical stripes down the screen what looks like an open white page on half the screen and a black spot. First try powering your Chromebook off by holding the power button down for six seconds then turning it back on again. Now I found that I can connect it to my TV HDMI in so I did that.
First try powering your Chromebook off by holding the power button down for six seconds then turning it back on again.
Open Device Manager Display Adapters. Turned it off charged it nothing helps. Certain Dell monitors and Windows updates have been known to cause this condition. Turned it off charged it.

