Black dot and grey and white vertical bars on screen

[BerryIndigo]

Okay so for context  (if you can't see it, idk how this works) I have an HP Laptop which runs on Microsoft Windows 11, and recently (by recently I mean a few minutes ago) vertical grey and white bars showed up on about a quarter of the left side of my screen, along with a black dot. I've had this laptop for little over 2-3 years now and it was working just fine until today. Now I will admit there was a bit of water damage on the right side of the screen but it was completely fine. Worked as usual, no issues whatsoever. I made sure it was properly attended to so there was so issue. However, I'm not entire sure how this happened. At this point, I think my best bet would be just to replace the screen. I just wanted to know how much it would cost, especially considering my warranty ended the April of last year.

[A_Gayathri]

Hi @BerryIndigo,

Welcome to the HP Support Community

I understand you are facing a Black dot and grey and white vertical bars on screen issue with your HP Laptop PC 15-Dy2000 Display Issue. Not to worry I will help you to get a resolution to resolve the issue.

Please try the following Troubleshoots steps. 

1.    Turn off the Unit.

2.    Disconnect the AC adapter.

3.    Remove any discs from the disc drive.

4.    Remove memory cards from the card reader slot.

5.    Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.

6.    Disconnect the AC adapter press and hold the power button for approximately 15 seconds.

7.    Reconnect the AC adapter, and then turn on the computer.

Step 2

Turn off the unit and please press and hold the Windows key + letter B key and the power button together for 30 seconds after 30 seconds, 1st release the power button but keep holding the Windows key and B key for ten more seconds and then release these two keys If done correctly, you will see the display flashing once. Please attempt it thrice as this step and Restart the unit

Step3

The unit has to be turned off, Press Win+ V while holding these two keys then Press the Power button, continue to hold all three keys for 30 seconds and then release the Power button first and then release these two keys Please attempt it thrice  and then you may get a Pop-Up CMOS Check and it will restart the unit 

Even if you don't get a Pop-up restart the unit manually after 3 attempts.

Please  update Windows and HP support assistance updates 

And update Bios and other drivers please click on the link. to update the drivers. 

follow this link to run the test hardware test 

Opening the BIOS Setup Utility

Access the BIOS Setup Utility using a series of key presses during the boot process.

Turn off the computer and wait five seconds.

Turn on the computer, and then immediately press the ESC key repeatedly until the Startup Menu opens.

Press f10 to open the BIOS Setup Utility and check if the Black dot and grey and white vertical lines on the screen in the bios

please follow this link and try the troubleshooting steps HP Notebook and All-in-One PCs - Troubleshooting screen issues (Windows 11, 10)

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.

I hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!