Restart the laptop
Check and reseat the display cable if possible
Connect an external monitor to test the screen
Update the graphics driver
Roll back the graphics driver if the issue started after an update
Uninstall and reinstall the graphics driver
Update the operating system
Check display color settings and disable unusual color filters
Turn off HDR if enabled
Run a hardware diagnostic test
Boot into Safe Mode to check if the issue persists
Check for overheating and clean vents
Remove recently installed software or updates
Test with a different power adapter or battery if applicable
Reset BIOS or UEFI settings to default
Update BIOS or UEFI firmware
Replace the laptop screen if the issue is hardware-related
Repair or replace the graphics chip if needed