Hello, Vishal Menaria
Welcome to the Microsoft Community.
Hello, thank you for your feedback here on your issue, you seem to be experiencing cursor as well as screen anomalies.
First of all, thank you for sharing the information as well as the video, in general this could be related to the hardware, there could be a voltage after plugging it in that is causing this issue, you can refer to some of the steps below to troubleshoot some of the issues first:
1. Power adapter and battery management issues
The power adapter or battery management you mentioned may be causing current fluctuations, a condition that can lead to system instability. You can check the power management settings and disable unnecessary power saving options, which will reduce the impact of power fluctuations on your hardware. Additionally, turning off the touchpad is also a way to troubleshoot the problem so that you can confirm if the problem lies in the conflict between the touchpad itself and the power management. You can press Win+x to open Device Manager, right-click the touchpad driver and click Disable to test.
2. Driver Issues
Driver compatibility is indeed a common cause, especially when the laptop is plugged into a power source, certain drivers may not properly recognize the state of the external power supply. You can try updating the touchpad and graphics card drivers through Device Manager to make sure they are the latest versions.
3. Hardware Problems
If the power connector or internal circuitry is unstable, it may indeed cause current fluctuations, which in turn may affect the performance of the touchpad or screen. Check that the power adapter and battery connectors are securely connected to ensure there are no loose plugs.
4. Battery problems
Aging or damaged batteries are another common problem, especially since they can interfere with the proper functioning of the power management chip. You can try removing the computer's battery and using only an external power supply to check if the problem persists. If the problem is solved after unplugging the battery, there may be something wrong with the battery itself.
5. Conflict between system settings and software
Some software running in the background, especially system optimization tools, may interfere with the normal work of the hardware. It is recommended that you close some unnecessary startup items and troubleshoot through the task manager to find out if there are programs that take up too much system resources and cause hardware problems. If there is security software running, you can also try to disable it temporarily to see if it will improve.
You can choose to directly enter the safe mode to connect the power supply for use, and then observe whether it is normal afterward:
Windows startup settings - Microsoft Support
You can try it out by referring to the steps above, and after that, give some feedback and I will further support you.
Best regards
Bobhe | Microsoft Community Support Specialist