Help! Laptop suddenly flickers discolored lines?

[Soule]

A couple days ago, I was typing up a paper on my HP TouchSmart Notebook using Google Docs, and then suddenly the screen flipped out. Out of nowhere, the screen became discolored and started flickering fine green and purple lines. The lines are both vertical and horizontal on top of each other, the vertical lines appearing more solid because they flicker less. About an inch or two from the top of the screen there's a bigger green line flickering the slowest. Everything above that line is normal on the screen, though. I've tried troubleshooting the problem a little. I've restarted it, both soft and hard, made sure it's set to its recommended resolution, checked for a display driver update in the device manager, ran a bios update I had on my HP support assistant, and even ran a system restore. I also tried pressing the screen and checking if the problem is external, but it's not. Someone please help me, thank you.

[Riddle_Decipher · Accepted solution]

@Soule

Thank you for joining HP Forums. 

I'll be glad to help you.

As I understand your screen flickers with discolored lines,

No worries, as I'll be glad to help you, that said, I'll need a few more details to dissect your concern & provide an accurate solution: 

Did you check if the issue occurs on an alternate monitor?

If you haven't, Please try an alternate monitor to understand if this is either a hardware or a software failure, 

if the issue does not appear on the alternate monitor, you may need to replace the display assembly on your computer, 

if the issue appears on the alternate monitor/TV as well, re-install the graphics card drivers & update it from the official HP Website: Click here 

  

If you don’t have an alternate monitor, I recommend checking if the issue appears on the BIOS screen (restart the computer and tap on F10 to access BIOS) 

If the issue does not appear in BIOS, reinstall the graphics card drivers & update BIOS using the above link, 
If it does, Contact HP to replace the LCD/Repair the computer: 

  

If the issue occurred after an accident (such as dropping it on the floor, liquid spilled on it, etc.) there could be a hardware failure and in such cases, you may need to get the computer repaired via HP (there could be a charge involved if the PC isn't covered by the accidental damage protection plan) 

HP Support can be reached by clicking on the following link: http://h22207.www2.hp.com/us-en/?openCLC=true

(1) Once the support page opens please select the country in which you're located. Next, enter your HP model number on the right.

(2) Next, choose the 'Contact Support' tab at the top and scroll down to the bottom of the 'HP Support- Contact' page to fill out the form provided with your contact information.

(3) Once completed click the 'Show Options' icon on the bottom right.

(4) Lastly, scroll down to the bottom of the page and select 'Get the phone number.' A case number and phone number will now populate for you.

They will be happy to assist you immediately. 

If the unit is under warranty repair services under the manufacturer's warranty will be free of charge.

feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon 

followed by clicking on 'Accepted as Solution' 

And Have a great day Ahead!