Generic AC adaptor causing touchpad problems

Discussion in 'MacBook Pro' started by 262Runnr, Jan 23, 2013.

  1. macrumors regular

    262Runnr

    Joined:
    Jul 21, 2008
    Location:
    NC
    #1
    I purchased a second generic AC adaptor on Ebay so I wouldn't have to keep moving my Apple adaptor from room to room. I noticed that my touchpad was acting erratic. After a couple of weeks of this behavior, I decided to ditch the generic adaptor, which I was using frequently, and only use the Apple AC adaptor.
    My problems with the erratic touchpad seemed to have disappeared...and hopefully will stay gone :). Could the generic adaptor really have been the issue and caused the erratic touchpad problems?
     
  2. macrumors member

    Joined:
    Aug 5, 2012
    #2
    You should never cheap out on the power supply. As a weak or poorly made PSU can kill the rest of the components in a computer.
     
  3. macrumors member

    Joined:
    Apr 20, 2012
    #3
    It is electrical interference, I had a third party ac adapter and it did the same thing with my trackpad and my tv nearby.
     
  4. macrumors 68000

    Joined:
    Jan 21, 2008
    #4
    power supply = important.
    unfortunately chinese knock-offs don't cut it.
     
  5. macrumors 68030

    Joined:
    Oct 21, 2012
    #5
    Check if it's grounded. Using an ungrounded adapter (including the short plug with Apple's own PSU) can cause trackpad issues.
     
  6. thread starter macrumors regular

    262Runnr

    Joined:
    Jul 21, 2008
    Location:
    NC
    #6
    I'm using the Apple short plug and it seems to be working fine. I stopped using the generic and haven't had any issues since then.
     

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