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I received a new Surface Pro 7 8GB 128GB on 27/03/20. The trackpad cursor freezes after a very short time of use on mains power. Cursor unfreezes with power cable is removed. My SP7 is fully updated from Windows update and no other software installed.
Going to Microsoft Support and speaking with a chat agent, I completed steps of running diagnostics and resetting the computer. The problem remained just as bad. The agent decided it was a hardware issue and authorised a return. A new SP7 arrived today 31/03/20 and it has exactly the same problem! In fact it is worse, in that the cursor goes into frozen state more quickly after I attach the power cable. Further chat with agents - they are going to send me a new power supply. But I am dubious that will help.
I like the Surface Pro 7, and it works great on battery power, but is frustrating that the trackpad is completely unusable while on mains power. I suspect some manufacturing fault of inadequate shielding of the trackpad from magnetic interference caused by the power supply. But who knows? I have Surface Laptop 2 and have never had any problem with its trackpad while on mains power.
The last Microsoft chat agent told me my case would be escalated to a more advanced technician. I mentioned that there are over 200 people reporting the same problem in https://answers.microsoft.com/. See http://tiny.cc/u5f8lz He said they have nothing about this problem in their database.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
100% it's the charger. I've used various chargers (all MS) and some create this issue and others don't. I've replaced the keyboard with trackpad, so clearly it wasn't that. Once I played around switching the chargers the problem became apparent.
Yes, detaching and putting back is a quick reset. Anything else you do will either be temporary or just frustrating...
I'm afraid mine is a problem using the original Microsoft charger, a non-proprietary one or a USB-C one. I have bought a SP8 now and the problem happens, but only very occasionally now.
this issue happens when using a 3rd party charger. I bought a 3rd party charger after mine broke and had the same issue. Since I bought an original charger it's gone
it's a static interference thing. if you hold the metal on the back of the computer, it grounds it enough to work
This is definitely a problem with the charger itself (in what capacity I do not know), and it's not a driver issue.
I say that because, for almost two years after buying the machine, I suffered through the mouse hangs using the touch pad while charging. When my charger finally went bad, I ordered a replacement (not Microsoft) and I have not had a single instance of a mouse hang using the touch pad when on the charger. Can't explain it, but am grateful I got lucky with this 3rd party charger not causing the problem.
