Windows 10: How to fix screen tears/artifacts?

I have Lenovo laptop G51-35 with AMD A8 7410 Radeon R5 and has windows 10 v1803. The issue that I'm having is screen tears/artifacts appearing on wallpapers, applications, and while watching a video. I've reinstalled windows 10 and gpu drivers several times, but no change. However the screen tear/artifact does not appear on external screen. What could be the issue here. Is my laptop screen going bad? Any help will be greatly appreciated. Thank you.






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How to fix screen tears/artifacts?

I have Lenovo laptop G51-35 with AMD A8 7410 Radeon R5 and has windows 10 v1803. The issue that I'm having is screen tears/artifacts appearing on wallpapers, applications, and while watching a video. I've reinstalled windows 10 and gpu drivers several times, but no change. However the screen tear/artifact does not appear on external screen. What could be the issue here. Is my laptop screen going bad? Any help will be greatly appreciated. Thank you.

 

Screen tearing while playing minecraft

Whenever I play Minecraft, my computers tends to screentear a lot. Screen tearing is a visual artifact in video display where a display device shows information from multiple frames in a single screen draw. The artifact
occurs when the video feed to the device is not in sync with the display's refresh rate. Yes I have tried turning v sync on and it doesnt fix the problem. I have also tried to reset my graphics card settings incase I did something and the problem did not fix.

Specs:

Processor: Intel Core i5-4210 CPU @ 1.70 GHz 2.40 GHz

Ram: 8.00 GB

64 bit system

Nvdia 840a

Windows 10

Minecraft Java edition

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds