What to do if the touchpad doesn't respond well to touch?

A DELL Latitude e6400. Because iron is very modest - easy use of Linux. But there is a sadness trouble with the touchpad. He ,for no apparent to me reason not clearly responds to touch. I.e. spending one time on it - the cursor is in place, the MB will move a little. Spend a second time - goes almost as it should. No clear systematics in setermoen. Everything happens unexpectedly. Although noted here that without charging such stocks almost not observed, but once I put the laptop on charging becomes significantly uncomfortable.

I have no idea what it could be. This was E6410, there are such jambs was not. Touchpad ALPS. Systems will be determined exactly as a touchpad. The change of distribution is not helping.

Help the good (and maybe not) people the Council, because to live so uncomfortable.
July 12th 19 at 17:32
4 answers
July 12th 19 at 17:34
To replace the tach, tach insulated, lease, repair or return under warranty. Unlikely: to update fire wood or to calibrate when connected to the charger (I do not know whether the measured capacitance at the calibration, so just a guess). I would personally chose to "pass on warranty".
July 12th 19 at 17:36
Theoretically you can help high-quality grounding in the socket.
July 12th 19 at 17:38
We noticed on this model that the charge on the body voltage falls. Just swipe your finger on the lid when it's charging and when not.
However it did not cause such effects from the touchpad as you.
July 12th 19 at 17:40
Try to find another PSU and test with it or do the maintenance of your.
This problem occurs because of the noise(interference) on the power lines, noise may give himself the PSU (usually the electrolyte in the outlet dried up), and because of the problems with the electrolytes in the converters in the laptop.

Anyway this problem is easily diagnosed in the presence of an oscilloscope or a blunt replacement of all electrolytes :)

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