Sierra Apple USB SuperDrive Problem

Discussion in 'Mac Pro' started by rawweb, Jan 11, 2017.

  1. rawweb, Jan 11, 2017
    Last edited: Jan 12, 2017

    rawweb macrumors 6502a

    rawweb

    Joined:
    Aug 7, 2015
    #1
    Any ideas what the heck is going on here? On my late 2013 Mac Pro with Apple Superdrive, every time I insert a blank DVD disk, it isn't recognized by the system and begins flashing (see video).

    Tried plugging into multiple USB ports (thunderbolt display, directly to Mac Pro, etc), tried different disks...all produce the same result. Mac Pro reads burned disks just fine...was trying to duplicate a master for a client and this happened.

    Interestingly, when connected to my 2014 MacBook Pro, it produced the same result.



    EDIT: I just borrowed a Superdrive from another employee, and it's doing the same thing!!
    --- Post Merged, Jan 11, 2017 ---
    UPDATE: I logged into one of our spare 2012 iMac's which is still on El Capitan, works flawlessly with the same drive/disk. Appears to be a bug with Sierra. Screen Shot 2017-01-11 at 3.56.47 PM.png I also uploaded this to Apple feedback assistance.

    MODS: Please move to macOS Sierra forum.
     

    Attached Files:

  2. orph macrumors 6502a

    Joined:
    Dec 12, 2005
    Location:
    UK
    #2
    id gess the drive is USB powered and the mac pro can not supply sufficient power to the drive.

    if it is a USB powered drive use a powered USB hub to power the drive and plug the hub in to your macpro ^^

    i use the USB hub on my display to do this

    (if it is a mains powered drive ignore im wrong)
     
  3. rawweb, Jan 11, 2017
    Last edited: Jan 11, 2017

    rawweb thread starter macrumors 6502a

    rawweb

    Joined:
    Aug 7, 2015
    #3
    Negative, as reported in my first post I plugged into multiple 6,1 (10.12.2) USB ports direct, Thunderbolt Display USB ports, same problem. Finder just continuously flashes the ignore/ok/eject screen :mad:. Only clicking eject makes it stop.

    Direct into my 2014 rMBP (10.12.1) same result. Occurred on multiple Apple USB SuperDrive units.

    As reported, the same disk drive/disk worked flawlessly on a spare iMac with 10.11.5 installed. So I was able to get this crummy request filled pretty quick with some minor investigative work. Based on my testing, this seems limited to Sierra 10.12.1 and 10.12.2 releases. o_O

    Bit surprised to see no other reports on a google search. Makes sense I guess, even I hate hauling out a DVD drive in 2017...
     
  4. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #4
    I've just used this drive 2 days ago on my cMP with macOS 10.12.2 official release (16C67). No problem at all.

    If you are still with 10.12.1 or 10.12.2 GM, may be you should consider update your OS.
     
  5. rawweb thread starter macrumors 6502a

    rawweb

    Joined:
    Aug 7, 2015
    #5
    My 10.12.2 is 16c67...nothing else to upgrade to. :(
     
  6. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #6
    Not sure if this can make any difference. In order to make this super drive work on cMP. I have to add a boot argument. To simplify the process. You may type this in terminal.

    sudo nvram boot-args="mbasd=1"

    And then restart your Mac.

    This command can make the unsupported super drive work flawlessly on an old Mac. You may try to see if this can make an officially supported super drive works better on the newer Mac.
     
  7. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #7
    I have two optical drives in my 5,1 cMP. I use Toast 14 to burn discs, and I usually burn from disk to disk. Both drives are LG brand, one is BlueRay the other DVDRAM. No issues at all on Sierra with CDs or DVDs (single or dual layer).

    My only issue, is why did Apple render the f12 key unable to eject discs anymore?????

    Lou
     
  8. rawweb, Jan 12, 2017
    Last edited: Jan 12, 2017

    rawweb thread starter macrumors 6502a

    rawweb

    Joined:
    Aug 7, 2015
    #8
    @h9826790 It's not that it isn't working. It shows up in system info on both the Mac Pro and MacBook just fine and attempts to mount the blank DVD endlessly. It also reads already created media just fine. I'll upload a video shortly that better illustrates the behavior. It's what I sent to Apple feedback.

    EDIT:
    Here is the video:
     
  9. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #9
    I know, that's why I said that you may test that command if make a supported super drive work better.
     
  10. djlythium macrumors 6502

    djlythium

    Joined:
    Jun 11, 2014
    #10
    Just wanted to update the community on my solution to this issue.

    So, after consolidating info from the net, here are the steps I used to get the Superdrive to work on a 2016 13" MacBook Pro w/ Function Keys:


    1. Boot in Recovery Mode (hold CMD + R when booting up)

    2. Open Terminal, which should start with the Bash prompt

    3. Paste nvram boot-args="mbasd=1" and hit enter

    4. Then, paste nvram boot-args to ensure "mbasd" was set to 1

    5. Restart normally

    6. Plug in Superdrive, and off you go.


    Following these steps to the letter worked for me. Some instructions on the next say to paste in 'sudo nvram boot-args="mbasd=1"' to Terminal after rebooting, but you'll (probably) get the error that 'sudo doesn't exist', which is why I removed it from the command.

    Also, use these steps if you're getting the nvram: Error getting variable - 'boot-args': (iokit/common) data was not found error when trying paste the above command into Terminal when login in normally.
     
  11. saulinpa macrumors 6502

    Joined:
    Jun 15, 2008
    #11
    Thanks for the instructions on using the nvram boot-args="mbasd=1" command in recovery mode. It worked on my cMP. I guess Apple keeps locking things down trying to protect the unprotectable.
     
  12. walkerap macrumors newbie

    Joined:
    Jun 19, 2017
    #12
    Did you ever resolve this issue? I have a Mac Pro exhibiting identical behavior and none of the fixes listed here are doing the trick. Thanks
     
  13. rawweb thread starter macrumors 6502a

    rawweb

    Joined:
    Aug 7, 2015
    #13
    Both my 2013 MacPro and 2014 rMBP at work still exhibit this behavior. I didn’t have high expectations for fixing. I’ve considered a genius appointment but don’t really have time for their basic diagnostics, like fresh install.

    Occasionally a client requests a DVD and it becomes a big pain.

    I’ll try it on my 2016 tbMBP in a few and report back.
     
  14. walkerap macrumors newbie

    Joined:
    Jun 19, 2017
    #14
    Thank you for the update. I am waiting to see if my customer wants to give a rebuild a try as well.
     

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