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I've had the problem of USB ports stopping working (no USB devices recognized with system_profiler SPUSBDataType ) on a couple MacBook Airs over the last three years. In mid 2012 15″ macbook pro both usb ports recognise any usb 3 device but not 2! Search Titles Only Show Results as Posts Advanced Search Forum Community Center Technical & Troubleshooting Arena Apple Cinema Display (20 inch) USB ports not working If this is your first visit, In fact, neither one of those things you listed require an SMC reset. Source

Also try using the mac pro's USB when you disconnect the display's USB. I have a razer driver that was not working but now works, and my drawing tablet works now!!! Feb 3, 2012 12:32 AM Helpful (0) Reply options Link to this post by Leroy Tang, Leroy Tang Feb 3, 2012 2:11 AM in response to Norby Wells Level 1 (0 I loaded it onto my Mini recently as the USB ports weren’t working reliably. https://discussions.apple.com/thread/3678553?start=0&tstart=0

Usb Devices Disabled

You got me wondering where in the heck I had seen a pic detailing the location of the SMC switch in your model (since I couldn't just look in my early Released October 2008, identified by model number A1267. For more information on color and your display, see Mac Help. Preview my answer Post my answer View Statistics: Past 24 Hours: 0 Past 7 Days: 3 Past 30 Days: 16 All Time: 756 22,556 Free Manuals 89,310 Solutions 6,837 Devices iFixit

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed But of course I want it to work with the display so that I don't have to unplug too many things to take my laptop away. share Share on Twitter Share on Facebook Email Link Like + Quote Reply tigress35, Nov 3, 2008 tigress35 thread starter macrumors newbie Joined: Apr 5, 2008 #3 Thanks for your reply. Apple Monitor The odd thing is that every time I reboot or startup the mini it alternates to the next one, so it's not just an actual port that is dead, it's either

This 100% worked. share Share on Twitter Share on Facebook Email Link Like + Quote Reply sickmacdoc, Nov 4, 2008 sickmacdoc macrumors 68020 Joined: Jun 14, 2008 Location: New Hampshire #4 Wow- that is The SMC deals with power management such as sleep/wake response, charging, and power button response. http://osxdaily.com/2015/08/09/mac-usb-ports-not-working-fix/ The time now is 12:34 PM. -- ehMac New Style - Fluid Width ---- ehMac New Style - Fixed Width Contact Us - ehMac.ca: Canada's Mac, iPod and iPhone Community! -

God Bless. Apple Support This does not fix the problem. I have already installed razer synapse in order for this thing to function properly but still it will not suddenly work few minutes after i plugged the device in the right Jan 23, 2012 11:42 AM Helpful (0) Reply options Link to this post by Leroy Tang, Leroy Tang Feb 3, 2012 12:32 AM in response to Norby Wells Level 1 (0

Reset Mac Smc

I plugged it in the Thunderbolt Display as the other keyboard before. why not find out more The USB ports didn’t fail entirely, but they were definitely flaky. Usb Devices Disabled Several attempted restarts failed to make a difference. Thunderbolt Display Not Working Eventually I plugged in another Mac USB keyboard which worked straight away.

How to respond when someone praises about my Japanese? http://theweblive.net/not-working/jquery-remove-disabled-attribute-from-input.html I restarted and after doing so, even unplugging the USB from the back of the Mac Pro would no longer make it work again. Make sure the power cord is plugged in properly. Reply With Quote 8th Mar 200915:41 #3 lizardfuel55 View Profile View Forum Posts Member Registered: Apr 2004 Location: Garrett's Building Originally Posted by Zerker Usually the USB ports on monitors Pram Reset

The one thing about this display, however, is that for a long time it has been having problems with its USB ports in the back. Would you like to answer one of these unanswered questions instead? I've got a server setup where I needed a second ethernet port setup that I've configured through USB-to-Ethernet. have a peek here I usually managed to bring it to work when I unplug the keyboard several times and plug it in again OR I open the settings and wait for some time and

Browse other questions tagged keyboard macbook usb thunderbolt thunderbolt-display or ask your own question. Apple Store Thanks. Not sure how that found its way back there.

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Original problem persists, so I can only assume SMC reset did not occur, but not certain because no other indicators. Privacy Policy Terms of Use Sales and Refunds Site Map Contact Apple United States (English) Home Mac OS X iPhone iPad Tips & Tricks Jailbreak News iOS Mac USB Ports Stopped I'll talk to my local Mac dealer and see if they think it's worth a fix. Is there something about Intel processors that explains those weird startup issues?

Reply With Quote 8th Mar 200915:53 #4 David View Profile View Forum Posts Visit Homepage Member Registered: Dec 1999 Location: Black Squadron With the Apple Displays the cable is built It was, as usual, quite satisfying to be able to fairly quickly pinpoint the problem with this level of accuracy and find a reliable workaround that does not require the purchase UPDATE 2: From a suggestion in the comments, here are the System Report details on USB, Cameras, and Audio: troubleshooting thunderbolt-display share|improve this question edited Apr 28 '14 at 18:09 asked Check This Out If I just plugged in the DVI cable (from the ADC-to-DVI adapter) and nothing else, everything worked fine.

Armistice Day Challenge Join lists by observing x-value How to handle swear words in quote / transcription? "president-elect" grammatically correct? Make sure the brightness is set properly. Sorry, but could you confirm what you mean by "a USB device cable going from the monitor to the computer" That's probably the only other thing I haven't tried. I don't have any problems when I just put the Mac to sleep.

But attempting to use the 3 rear USB ports on the display results in failure. Copyright © Apple Inc. Bus powered only. share|improve this answer answered Aug 15 '13 at 7:25 John Sample 1461113 add a comment| up vote 0 down vote Thanks for all the suggestions folks.

I plugged the display in after the Mac Pro had already started, and everything was in order. Yes, it's Apple, but I got it for less than half the price it would be sold at (for 250$). Reply Carmen Sisson says: March 9, 2016 at 12:35 pm Thanks so much. Reply Birther says: August 9, 2015 at 6:53 pm Just reconnect your USB cable from the hard drive to your Mac, it has nothing to do with OS X Yosemite or

If you have a problem with your display and nothing in this article addresses it, consult the service and support information that came with your display for instructions on how to However, my thunderbolt has stopped working right after (I use it for a thunderbolt to VGA cable for teaching) - any idea what's going on? Sometimes on initial boot, sometimes after waking, the keyboard doesn't seem to be recognized.