On Monday, August 11, 2014 11:55:57 AM UTC-4, Tim R wrote:
On Monday, August 11, 2014 10:41:31 AM UTC-4, Pat wrote:

As others have said, don't assume the problem is the jack. I had a



Sony laptop that had the same symptom - giggling it made it work. It



turned out to the wires in the cable right near the plug. I soldered



I think that the diagnosis is correct. A second known good cable was tried, and the center pin in the jack wiggles slightly when pushed. I think that I may also have tried the technical department at Best Buy or Staples.

Oh. I had a second laptop that was assumed to have the same problem. I didn't have an extra power supply to try, so I took it in to Staples. They found a power supply that would fit and I was back in business.