Introduction
It can be worrying to see pink or green horizontal lines at the bottom of your laptop screen. Numerous things, including hardware issues and software bugs, can result in these lines. You can follow the instructions in this tutorial to troubleshoot and perhaps fix this issue.

Step 1: Check for Software Issues
Sometimes, the issue might be with the software or drivers. To check:
- Update your graphics driver: Go to the manufacturer’s website, download the latest driver for your graphics card, and install it.
- Update your operating system: Make sure your operating system is up-to-date. This can often fix software-related issues.
Step 2: Check the Display on an External Monitor
Connecting your laptop to an external monitor can help determine if the issue is with the laptop’s display or the graphics card.
- Connect your laptop to an external monitor.
- If the lines appear on the external monitor, the issue might be with the graphics card. If not, the issue is likely with the laptop’s display.
Step 3: Check the Display Cable
The display cable connects the laptop’s display to the motherboard. A loose or damaged display cable can cause lines on the screen.
- Turn off your laptop and disconnect it from the power source.
- Open the laptop (you might need a screwdriver for this).
- Locate the display cable and check if it’s properly connected. If it’s loose, reconnect it.
- If the cable is damaged, you might need to replace it.
Step 4: Consult a Professional
If none of the above steps work, it’s best to consult a professional. They can properly diagnose the issue and suggest the best course of action.
Conclusion
Troubleshooting a laptop screen issue can be challenging, but with patience and a systematic approach, you can identify and resolve the issue. Remember, always refer to your laptop’s user manual for specific instructions.
FAQ's
Turn your monitor off and on again. It seems like a basic fix, but it can often correct screen glitches, such as horizontal lines. Restart your computer. This can fix a variety of tech issues and could get rid of any flickering lines on your screen.
Some of the most common causes of these lines on the laptop include hardware issues such as a faulty video card, a malfunctioning LCD panel, a cracked display, or a defective LCD cable. Other causes of horizontal lines on the HP laptop screen may include software or driver issues or even a virus or malware infection.
If the green line is accompanied by many other colors, and especially if you can see damage to the glass, the screen itself is probably cracked. If it’s just a single, thin green line that runs from top to bottom, some of the common causes include: Loose display connector. Damaged display connector.
This is usually caused by a bad connection to the display. Try the following suggestions: Check that the video cable is firmly connected to the display and to the system. A loose connection can result in discoloration.
Solution 1: Reconnect the Video Cable. Solution 2: Change Screen Resolution. Solution 3: Update Graphics Driver. Solution 4: Run Display Quality Troubleshooter. discoloration.