Hello, 

I’ve had a problem recently with my XPS 15. When I use the touchpad it will be fine for a few minutes and then start lagging and randomly moving around the screen erratically. I initially thought this was a software issue because shutting the screen for a second or two returns trackpad movement to normal. However, when the trackpad glitches like this, the bottom corners of the trackpad actually work fine. 
so far I have tried: 

• updating and rolling back NVIDIA drivers
• Updating the PC
• Turning off HIDs ability to turn off when not in use/to save battery
• Checking all drivers are up to date 
• updating with optional dell trackpad updates 
• removing GeForce experience 
• uninstalling all unnecessary external software
• Reinstalling the OS
• returning to previous build

I'm about to tear down the laptop to check for a hardware issue. It’s worth nothing that this has been a minor issue off and on for a few months. It then stopped being issue, and now in the last few days the laptop has suddenly become unusable. Is there any advice anyone has on potential fixes? 

Cheers in advance!

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