input lag 2012 imac?

Discussion in 'iMac' started by Sortvind, Jan 14, 2013.

  1. macrumors newbie

    Joined:
    Dec 28, 2012
    #1
    So after my yay thread on the new imac, i do have something i hope you guys can help me with.

    i seem to suffer from input lag on my new 21.5 imac, after googling it seems several people across various mac OS have it, so i guess it is software/OS related, but not found a solution that worked.

    it is there on both mac messenger, firefox e.t.c

    it is not consistent, but often i type and the words do not come up until later, its a bit annoying to be honest, its like 50 procent of the time.

    i did check on and off the slow keys, but that did not work.

    checked the cpu in activity monitor, and its below 10% total.

    no widgets, and few start up softwares ( Flux, weather HD, Eset antivirus ).

    any help or suggestion is appreciated :)
     
  2. macrumors 603

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #2
    Sounds like Bluetooth lag. I seem to have it occasionally when I wake my new iMac from sleep. I assume you're using the BT keyboard?
     
  3. thread starter macrumors newbie

    Joined:
    Dec 28, 2012
    #3
    that is correct.

    i turned the keyboard off and changed the battery even though the keyboard is only a few days old.

    lag is reduced about 70%, so it seems it really helped just changing the batteries.
     
  4. macrumors 603

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #4
    You might be experiencing some interference from other 2.4Ghz devices, so make sure none are anywhere near the computer while you're troubleshooting..
     
  5. macrumors regular

    Joined:
    Dec 8, 2012
    #5
    had this exact same problem with mine....try a simple shutdown or restart, if that doesnt work do a pram and smc reset....worked perfect...if you dont know how to do those lemme kno its very simple
     

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