Headphone jack delay

Discussion in 'MacBook Air' started by Vixus, Aug 9, 2011.

  1. Vixus macrumors newbie

    Sep 8, 2004
    I noticed that on my new 11" macbook air 2011 seems to exhibit some lag when switching over from laptop speakers to headphone. For some odd reason, when I plug in my headphones while audio is playing on my laptop, it takes almost 3 seconds to switch the audio over to my headphones. The worst part is that while it's waiting to switch over, audio is still coming out of the speaker which can be quite annoying. Anyone exhibiting the same behavior?

    I called Apple Support and no one could tell me if this is normal behavior.
  2. MilkMan4 macrumors regular

    Jun 22, 2011
  3. HiRez macrumors 603


    Jan 6, 2004
    Western US
    Yeah, same with my 13". Thought it was broken the first time and unplugged and replugged it about 3 times before it finally came on. Weird. Hopefully that's a software/firmware thing that can be fixed, although it's not really the end of the world as far as flaws go.
  4. iphonsteve4ajob macrumors regular

    Aug 6, 2011
    Interesting...Guess I'll have to test this out...
  5. Vixus thread starter macrumors newbie

    Sep 8, 2004
    It's not a big deal, but I have to say that it seems like a major flaw. Customer support wanted me to bring my air in to the store because they couldn't figure out if this was normal. So essentially, I have to waste time at the store because of their incompetence. The last thing I want is to make a trip there and them telling me that this is normal behavior.

    I'm just glad to hear that I'm not the only one. Anyone else NOT have this problem?
  6. 87am macrumors regular

    Feb 27, 2011
    Same here on my 15 MBP. I never noticed it until I upgraded to Lion...
  7. Geetarpicker macrumors newbie

    Jul 20, 2011
    My new 13" does this, though it's not 3 seconds more like 1-2. At first I thought the jack was bad, then I thought about it. My guess is the switching from speaker on (no headphone plugged in) to speaker off (after headphone is plugged in) is done electronically by a circuit that detects the load of the headphone. In other words I don't think the headphone jack has any old school type switching contacts. If this is indeed the case that is probably a good thing. Switching contacts can go bad quickly in small jacks, and an intermittent contact issue could cause the speaker to drop in and out even if you never used the jack. Anyway, it seems the jacks don't have switching contacts which is one less thing to go wrong. Maybe a software update could speed up the detection circuit a bit.
  8. RobT macrumors 6502a


    Dec 20, 2007
    Ohio, USA
    My new 11" MBA does this. When I first plugged in headphones I had that "panic" feeling thinking the jack didn't work. Then it sprang to life. It's like a two second delay. Right now I'm in the "glad it works camp" more than the "it shouldn't have to be like this camp," which is subject to change.
  9. DustinT macrumors 68000


    Feb 26, 2011
    Yup, thats whats happening. Its a feature that will pay off over the years, don't sweat it.
  10. YEEZY macrumors member

    Jul 29, 2011
    However, sometimes when I unplug my headphones/speakers, sound just stops coming out. And then I have to restart my MBA to make it work. So it definitely seems like a software issue to me.
  11. Vixus thread starter macrumors newbie

    Sep 8, 2004
    I think that's a problem. You should definitely get that checked out.
  12. twilightcircus macrumors newbie

    Dec 9, 2007
    2011 Macbook Air Audio Jack Delay

    I have owned a refurbished 13" July 2011 Macbook Air for three days now. I bought it online from Apple. Overall I love it.

    However, when my speakers are playing, and I plug in my earbuds, it takes 3 seconds for the audio to switch over.

    Does this happen with both Lion AND Leopard?

    Is this Macbook Air specific?

    Hopefully further OSX or firmware updates address this problem.
    Although much worse things can happen, it seems a bit sloppy for an $1100 machine.

    Click HERE for one of two related apple forums.
  13. theSeb macrumors 604


    Aug 10, 2010
    Poole, England
    Yes. Sell it and get something else.
  14. komoornik macrumors regular

    Jul 29, 2011
    Another thing to convert to Windows 7 - it's working perfectly for me ( Win 7 on MBA ).
  15. Stingray454 macrumors 6502a

    Sep 22, 2009
    I have seen the same behaviour on every macbook I've tried, back to my first one (late 2008 macbook, first aluminum version), and even on my iMac. I'm pretty sure all Macs behave this way, although I'm not quite sure why. Might have something to do with some audio jacks beeing a normal/optical hybrid, so the OS needs some time to figure out if you inserted an optical connector or regular one. Anyway, no reason to worry about it, it's not a hardware problem and I don't think anyone is impatient enough to not be able to wait 2 seconds when plugging in some headphones :)
  16. pieuk macrumors member

    Dec 25, 2011
    happens on my 13" to. tis normal!

    once on my mbp i remember i couldn't get the sound to work, and a red light was shining out of the headphone port :O
  17. Fazzy macrumors 6502

    Oct 12, 2011
    check the tracking device
    my 13" air has it too. Nothing to worry about really, just make sure the headphones are plugged in before playing your audio.

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