My screen flickers and has vertical and horizontal lines after update.

[Milimils]

my screen has vertical and horizontal lines after update. at the top most part the lines are white and flickering also. when the screen is black background, the vertical lines appears white lines and slowly the whole black background is turned into ligher shade. the fonts are not clear as 

[Alden4]

Hi @Milimils,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

The screen flickering and the appearance of vertical and horizontal lines on your HP ENVY x360 after an update could indicate either a software/driver conflict or a hardware issue. Here’s how you can troubleshoot the problem.

Identify the Root Cause

Check in BIOS/UEFI:

• Restart your laptop and enter the BIOS/UEFI settings (usually by pressing Esc, F2, or F10 during startup).
• Observe the screen in the BIOS. If the lines persist in the BIOS, it is likely a hardware issue. If not, it is a driver or software problem.

Test with an External Monitor:

• Connect your laptop to an external monitor using HDMI or another video output.
• If the external display is fine, the issue is likely with your laptop's screen or screen connectors.
• If the external display also shows lines, it is likely a driver or GPU issue.

Fix Software or Driver Issues

Rollback Display Driver:

• Open Device Manager (Windows + X > Device Manager).
• Expand Display Adapters.
• Right-click your graphics driver (e.g., Intel UHD Graphics or AMD Radeon) and select Properties > Driver tab > Roll Back Driver.

Update or Reinstall Display Driver:

• If rolling back doesn’t help:
  • Visit the official HP support website for your device and download the latest graphics drivers.
  • Alternatively, download drivers directly from Intel or AMD, depending on your GPU.
• Uninstall the current driver in Device Manager, then install the downloaded driver.

Adjust Display Settings:

• Right-click on the desktop > Display Settings.
• Change the Refresh Rate under Advanced Display Settings to a different option and test if the flickering reduces.

Perform a Windows Update:

• Go to Settings > Windows Update and check for updates. Sometimes newer updates fix compatibility issues.

[Alden4]

Check for Hardware Issues

Inspect Physical Screen:

• Gently press around the edges of the screen to ensure no loose connections internally.
• Check for any visible damage to the screen or hinges.

Reset the Display Cable:

• If you are comfortable opening your laptop, reseat the display cable that connects the screen to the motherboard. 

Run HP Diagnostics:

• Restart your laptop and press Esc repeatedly to open the Startup Menu.
• Select System Diagnostics and run a display test to check for hardware issues.

I hope this helps.

Take care and have a good day.

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!

Alden4

HP Support