Performance problems may occur if there is any type of damage caused to the LCD screen. LCD screens issues show symptoms like the LCD screen stops working, works intermittently, flickering, display, horizontal and/or vertical lines, etc.
If you do notice physical damage, you will need to send it in for repair.
It is essential to verify if the problem is inherent with the LCD screen, video card (GPU) or video settings. A straightforward way to identify this is to connect the laptop PC to an external monitor or TV. If the issue persists on the external monitor it may be due to the video card (GPU) or video settings and not the laptop LCD panel
Try changing the screen resolution.
NOTE: Before performing any significant repairs, back up your computer's hard drive.
- Right-click on the Desktop and select Display Settings
- Select Advanced Display Settings
- If you have more than 1 screen connected - select the screen you want to change
- Click on the Resolution drop down box
- Select your desired resolution
- Click Apply.
If that did not work, try to shut down your laptop with the power button.
- Hold down the power button to shut off the computer, but DON'T TAKE YOUR FINGER OFF THE POWER BUTTON. Hold it there for about 60 seconds more, and then remove your finger.
- Once powered off, press the power button again to turn the computer on.
If that did not work, you can try to update the display adapter drivers on the computer.
How to update the graphics card driver on the machine
- Right-click Start/window
- From the list of results click Device Manager
- Under Display Adapters, double-click the entry for your Display Adapters, and then click the Driver tab.
- Click Update Driver Software.
- Follow the Update Driver Software Wizard to update the Display Adapters driver.
- Restart the computer
If the above step fails then try to perform a System Restore.
- Open Start.
- Search for Create a restore point, and click the result
- Click the System Restore button
- Click Next.
- Select the most recent known working restore point that will help you to fix the current problem.
- Click the Scan for affected programs button to see the applications that will be removed if they're installed after the restore point was created.
- Click Close.
- Click Next.
- Click Finish.
Once you've completed the steps, your device will go back in time to a previous state where everything was working correctly.