GL_Philly

Q: Thunderbolt Display USB Keyboard Problem Workaround

Hi everyone,

I've seen hundreds of messages related to the fact that the thunderbolt displays will occassionally not recognize a wired apple keyboard connected to the display when connecting to a laptop. I might have a workaround for those affected.

 

My 2103 15" MacBook Pro would never see the keyboard once I unplugged the unifed thunderbolt cable and plugged it back in. I've done everything from doing the switching USB ports dance, turning display off (pulling out power cable), connecting and reconnecting in various different steps, and even tried a new thunderbolt cable to bypass the built in one. Nothing ever worked, or a least, worked consistently. USB drives, iphone cables etc all work just fine, so I know the USB jacks are functioning.

 

I discovered that if you use the USB keyboard extender cable that Apple provides with some macs, and plug your keyboard into the the display through that cable, it will see the keyboard instantly. Everytime. We've tried it on a few computers at work and it solved the problem on those as well. I should note that the keyboards we are using are the latest apple ones with the launchpad key on F4.

 

If you are having problems, give it a shot. It just might solve the issue, until Apple gets it act together and acknowledges there is a problem.

 

Happy typing.

Posted on Jul 19, 2013 7:46 AM

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Q: Thunderbolt Display USB Keyboard Problem Workaround

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  • by Maschinsky,

    Maschinsky Maschinsky Mar 9, 2014 12:27 PM in response to GordonW1985
    Level 1 (13 points)
    Mac OS X
    Mar 9, 2014 12:27 PM in response to GordonW1985

    I heard about that workaround, but that's just—a workaround. There has to be a firmware-fix to this, no?

  • by griffis_dan,

    griffis_dan griffis_dan Apr 10, 2014 6:49 AM in response to GL_Philly
    Level 1 (0 points)
    Apr 10, 2014 6:49 AM in response to GL_Philly

    Confirming that adding the usb extension cord works as a work-around.

  • by OkiePilgrim,

    OkiePilgrim OkiePilgrim May 14, 2014 6:34 AM in response to GL_Philly
    Level 1 (5 points)
    May 14, 2014 6:34 AM in response to GL_Philly

    First off, THANK YOU GL_Philly for taking the time to share your solution!  (this worked for me straight away)

     

    Second, this looks widespread.  Any class action lawyers around here??  ;-)

  • by johannesgr,

    johannesgr johannesgr May 19, 2014 12:02 AM in response to GL_Philly
    Level 1 (0 points)
    May 19, 2014 12:02 AM in response to GL_Philly

    Hi,

     

    this also drove me nuts, but I used the USB extension cable and now it works.

  • by dupester,

    dupester dupester Jul 1, 2014 1:27 AM in response to GL_Philly
    Level 1 (0 points)
    Jul 1, 2014 1:27 AM in response to GL_Philly

    Amazing - this also works for me. Thank you.

  • by Robertex+,

    Robertex+ Robertex+ Jul 2, 2014 8:25 AM in response to GL_Philly
    Level 1 (0 points)
    Jul 2, 2014 8:25 AM in response to GL_Philly

    The extension cable solution is working for me also.


    Thanks a lot!

  • by chris01,

    chris01 chris01 Jul 14, 2014 11:46 PM in response to GL_Philly
    Level 1 (5 points)
    Jul 14, 2014 11:46 PM in response to GL_Philly

    This solved my problems I had with two MacBook Air and their Thunderbolts as well (using the Apple supplied USB extension cable)

  • by rojieh,

    rojieh rojieh Aug 26, 2014 8:36 AM in response to GL_Philly
    Level 1 (0 points)
    Aug 26, 2014 8:36 AM in response to GL_Philly

    This worked for me as well, with a caveat. Just before typing this post, I unpluged the extension cable to look a the female end. When I plugged the male end of the USB cable back into the extension cable, the keyboard was no longer recognized. I tried this a few times, then plugged it into the extension cable, unplugged the extension cable from the thunderbolt monitor and plugged it back in. This finally worked. I wonder if the "dimple" in the cable connector and in the corresponding groove in the male USB keyboard cable have something to do with this solution. Why is this fold in the USB connectors on the keyboard and extension cables? What does it do?

  • by rustem.galiullin.russia,

    rustem.galiullin.russia rustem.galiullin.russia Aug 30, 2014 8:04 PM in response to GL_Philly
    Level 1 (0 points)
    Aug 30, 2014 8:04 PM in response to GL_Philly

    hello, i faced up with this problem and discovered that contacts in Apple usb cables, and that extension cable that helps, does consist contacts that are placed a little deeper in the USB-plug than in wireless USB keyboard receivers and other peripheral, in which for minimizing, contacts starts right from the end of the pad. So - when plug such a USB devices into back USBs of TBD, do it not to the end, but leave some space. So - contacts are on it places and everything works without extension cables. But its really weird to meet such a featurebugging states on apple device, which costs 1 thousand dollars, because this thing with space between contact and the end of the pad considered in macbook pro own USB ports

  • by tallrussian,

    tallrussian tallrussian Sep 4, 2014 8:55 PM in response to GL_Philly
    Level 1 (0 points)
    Sep 4, 2014 8:55 PM in response to GL_Philly

    Amazing, but the workaround of using the extension cable solves the problem!   Thank you!  I use my MBA 11" with Thunderbolt display for work, and having to disconnect/reconnect it multiple times just to get the keyboard recognized was extremely annoying and business impacting.

     

    The extension cable hanging off my desk does not look pretty, but at least it works!   Thank you for the workaround!

  • by earlfromleesville,

    earlfromleesville earlfromleesville Sep 7, 2014 10:19 AM in response to cannell
    Level 1 (0 points)
    Sep 7, 2014 10:19 AM in response to cannell

    I also had the same problem, I installed the extender cable and everything is back to normal. Been fighting this for 7 months and its fixed NOW!!

  • by Craig Flint,

    Craig Flint Craig Flint Oct 23, 2014 12:40 PM in response to GL_Philly
    Level 1 (15 points)
    Oct 23, 2014 12:40 PM in response to GL_Philly

    Thanks for sharing this fix.  It's working for me on a MacBook Air connected to Thunderbolt Display and I appreciate you spreading the word.

  • by harito,

    harito harito Nov 24, 2014 8:14 AM in response to GL_Philly
    Level 1 (0 points)
    Nov 24, 2014 8:14 AM in response to GL_Philly

    Thank you

    This workaround solved it for me too, luckily I still have a USB cable extension!!

    Thanks!

  • by machtrim,

    machtrim machtrim Dec 3, 2014 1:00 AM in response to GL_Philly
    Level 1 (4 points)
    Dec 3, 2014 1:00 AM in response to GL_Philly

    I've been also struggling with this one until I found out a sequence that works.

    Once your macbbok is running, close the lid, plug the power and then the thunderbolt cable.

    My apple wired keyboard is then recognized.

    Hope this helps.

  • by Tigmouse,

    Tigmouse Tigmouse Dec 16, 2014 6:48 AM in response to GL_Philly
    Level 1 (0 points)
    Dec 16, 2014 6:48 AM in response to GL_Philly

    I had this issue as well and tried the USB Keyboard Extender Cable.  This worked for a while, but now I am experiencing the same issue again.  Very frustrating.  Has anyone found another resolution? 

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