black screen vertical lines

[KalaniJ]

 

 

I have the 14-cb171wm stream laptop and I purchased it in July of 2021. I usually use it for school and when not in use keep it on a top shelf of my closet where it is unbothered. I haven’t used the laptop for about a month now and when I went to turn it on a couple of days ago a black screen and colorful vertical and horizontal lines popped and then completely disappeared back to a black screen. I tried putting it on the charger before trying it again and only change is a quick “pop” sound and still shuts back off. There has been no known physical damage. It had never been thrown around, slammed shut, or tossed to the side. 

[WAWood]

@KalaniJ 

This is almost certainly an indication of failing video hardware -- either the screen or the video chip or both.

You need to connect an external monitor to the laptop.

If the visual artifacts also appear on the monitor, then it is a failing video chip and since those are soldered to the motherboard, they are not replaceable.

If the visual artifacts do NOT appear on the monitor, then it is a failing laptop screen. While those can be replaced, the cost varies enormously by individual PC model.

We are not able, or permitted, to provide any repair estimates or equipment prices.
For this information, you would need to contact an HP Repair or Service Center.

Since you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm

Good Luck