3rd al MacBook. Now screen hum/flicker?

Discussion in 'MacBook' started by California, Nov 30, 2008.

  1. California macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #1
    Third one. Picked it up yesterday, bought four gigs of ram, did updates and now when I was installing the trackpad firmware update, I am seeing a sort of low visual "hum" not unlike a florescent light bulb before it starts to radically flicker and die.

    Are LED screens like florescents? I mean do they have alternating current flowing through them?

    If so, this is very very bad news. Artists will tell you never to use florescents because the underlying on/off current that lights up florescent tubes puts imperceptible strain on your eyes.

    I turned the brightness up and it seemed to stop. But if LED technology is anything like florescent tube lighting, this is going back and I'm getting a refurb. It will kill your eyes if you are looking at the screen for any amount of time.

    The other two did not have this slight visual hum, as far as I recall.
     
  2. California thread starter macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #3
    Oh I googled, thanks. Did not get a straight answer. But that was cute.

    Anyone know if LED has the inherent alternating current flicker that florescents have?
     

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