Troubleshooting some electronics issues
I'm trying to solve an electrical problem, and I've realized now that I may just want to do it myself.
I have two rooms whose outlets have given me trouble ever since I moved in a month ago. This townhouse was built in 1999. Whenever I plug my smart phone into one of these troublesome outlets, the touch screen is either very jumpy or not very well responsive. When I plug my laptop into one of these outlets, the touch pad (mouse alternative) is also jumpy--or if it has been plugged in for a while, unresponsive. It remains unresponsive for a little while even after I unplug it. I can move my phone or my computer to a different circuit in the house, and they'll be just fine. The problem occurs when I use a surge protector or not--doesn't make any difference. In addition, my laptop will have the same issue if I have it on batter power, connect it to a monitor via HDMI, and then have that monitor plugged in to the wall (also via a surge protector or not). I can move the laptop/monitor setup to a different circuit in the house and the problem will not exist. I had an electrician come and check it out, and he said the voltage measures perfectly on all the outlets on the problematic circuits. He tested the grounding or whatever and was able to trip the breaker. He really didn't know what else to try, although he didn't have the tool with him to check the magnetic interference in the air or whatever he was talking about. Is there anything else that can be done to figure out what the problem is and how to fix it?