my laptop screen flickers to grey color with horizontal lines

[venkatesh09]

my laptop's screen flickering image

[Raj_05]

Hi @venkatesh09,

Welcome to HP Support Community.

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

Screen flickering with horizontal lines on your HP 15.6 Inch Laptop PC can be caused by several factors. Here are some steps to diagnose and potentially fix the issue.

Step-by-Step Troubleshooting:

Restart Your Laptop:

• Sometimes, a simple restart can resolve screen flickering issues.

Check for External Causes:

• Ensure that the screen flickering is not caused by external devices. Disconnect any external monitors or peripherals.

Update Graphics Drivers:

• Outdated or corrupt graphics drivers can cause screen flickering.
  • Press Windows + X and select Device Manager.
  • Expand the Display adapters section.
  • Right-click on your graphics driver and select Update driver.

Adjust Refresh Rate:

• Incorrect refresh rates can cause flickering.
  • Right-click on the desktop and select Display settings.
  • Scroll down and click on Advanced display settings.
  • Select the correct refresh rate for your screen (usually 60Hz).

Check for Windows Updates:

• Ensure your system is up-to-date with the latest Windows updates.
  • Go to Settings > Update & Security > Windows Update and click Check for updates.

Boot into Safe Mode:

• Booting into Safe Mode can help determine if the issue is software-related.
  • Restart your computer and press F8 before Windows starts.
  • Select Safe Mode from the options.
• If the flickering stops in Safe Mode, the issue is likely software-related.

Run a System File Checker Scan:

• Corrupted system files can cause display issues.
  • Open Command Prompt as an administrator and type sfc /scannow, then press Enter.

[Raj_05]

Check for Loose Connections:

• A loose or damaged screen connection can cause flickering.
  • If you are comfortable doing so, carefully open your laptop and check the display cable connections. If not, seek professional help.

Test with an External Monitor:

• Connect your laptop to an external monitor to see if the flickering persists.
• If the external monitor works fine, the issue is likely with your laptop screen or its connection.

Check Power Settings:

• Sometimes power settings can affect screen behavior.
  • Go to Control Panel > Power Options and select High Performance.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support