New Blackmagic Multidock 10G - Problem! Not detected by Mac

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Rockman777

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New Blackmagic Multidock 10G - Problem! Not detected by Mac

PostFri Aug 16, 2019 11:46 pm

Hi guys,

I just purchased the brand new Blackmagic Multidock 10 G. I also have a new iMac Pro (2017 model), running OS X 10.14.5 Mojave. I connected the iMac Pro with the Multidock via USB-C cable (the cable was bought at OWC Macsales, for what it's worth). In the Multidock, I have 2 SSD drives, OWC Mercury Extreme Pro 6G, inserted in the first 2 slots of the Multidock. On the back of the Multidock, I have the switch in the "4" position (to use all 4 slots on the same A bus). And my USB-C cable is plugged into the "A" connector.

With everything connected and plugged in, when I power up my Imac Pro, it does not detect the SSD drives. They don't show up on the desktop, nor do they show up in Disc Utility. However, when I tried to unplug the USB-C cable (from the back of the iMac Pro) and then plugged it back in, suddenly, the SSD drives appear.

I have repeated this process countless times and it's the same problem each time. The SSD drives only are detected if I unplug and re-plug the USB-C cable from the back of the iMac Pro, while the iMac Pro is up and running.

Today, I took my Multidock down to the local Apple store. I plugged it into the iMac Pro that was there on display (which was running OS X 10.4.6 Mojave), and the same thing happened.

I should also mention that a friend of mine has an almost identical setup. Except that his iMac Pro is running the previous OS X High Sierra. And his Blackmagic Multidock is the older version, with the Thunderbolt 2 connectors. So he had to buy an Apple adaptor cable (Thunderbolt 2 to USB-C). Otherwise, he has the same identical SSD drives as I do (OWC Mercury Extreme Pro 6G). Anyway, he does not have any such problem with his system. When he powers up his computer, the SSD drives are detected immediately as normal.

I also tried to reset PRAM and SMC, just for a what if... but no luck.

Has anybody come across this problem? Can anyone make any suggestions? I hope I don't have to return the Blackmagic Multidock and find something else...

Thanks guys!
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Username

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostTue Aug 20, 2019 2:35 am

Could it simply be that the macOS does not allow usb entities to be access and read when connected to a Mac when the screen saver is active or user is not logged in?
I believe that’s one of the security features in macOS since a while back.
Grew up with a Nikon FM - Evolving with a BMMCC
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Rockman777

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostTue Aug 20, 2019 3:22 am

Thanks for your input. But I'm not 100% sure about that, primarily because this problem does not seem to happen with the previous model - Blackmagic Multidock 2 (thunderbolt 2), like in my friend's setup which I mentioned.

Does anyone else on this forum have the new Multidock 10 G and is using a Mac?

Thanks.
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Rockman777

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostSat Aug 24, 2019 5:19 pm

Still stuck with this problem. I was even sent a 2nd Blackmagic 10G to try (in case the 1st one was defective), but same problem.

Does anyone have any experience with Kext utility on a Mac? This is just a guess, but if I can add a line of code to my OS X, to force it to switch the USB-C port off and back on, during start up, maybe that would simulate the physical act of unplugging and replugging the USB-C cable from the Mac?

Thoughts anyone? Thanks again.
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Rockman777

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostSat Aug 24, 2019 8:01 pm

Latest update. Problem solved. I was using a Thunderbolt 3 cable, instead of a USB-C cable. Same type of connectors, but not the same functionality. Lesson learned.

Cheers
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planthealthman

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostWed Aug 28, 2019 6:35 am

I have the same issue but confused about the right cable i need to buy?

Can you please post a link to the cable you bought that works please?

Thank you.
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planthealthman

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostWed Aug 28, 2019 7:02 am

Sorry further to my previous post. I am using a 2013 mac pro which has 4xUSB (traditional), six original thunderbolt inputs and one HDMI one.

Can I use the Multidock with this MAC?

I know I could use a USB A to USB C cable but would lose all of the speed. Is there a fast version of such a cable?
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Rockman777

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostWed Aug 28, 2019 4:12 pm

Hello. Here's the link to the cable I bought https://www.apple.com/shop/product/MLL8 ... -cable-2-m

Having said that, your situation is a bit different, because you have a different computer, with different ports than mine. So I think your best bet would be to buy a Thunderbolt to USB-C adapter from Apple, and use one of your Thunderbolt ports on your computer. Make sure you find out if you have Thunderbolt or Thunderbolt 2.

Another option is for you to find the older model of the Blackmagic Multidock 2 which has Thunderbolt ports. That way, you won't need to buy any converter cables at all.

Best of luck.
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jayallenvideo

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostFri Sep 06, 2019 9:10 pm

I just got the multidock 10g and i dont see any software with the unit. I got a sd card but only a pdf manual on it. I tried to hook up to my 2019 imac and it only sees the 3rd drive. Is there a place i can download the software?
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Tony Rivera

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Re: New Blackmagic Multidock 10G - Problem! Not detected by

PostWed Sep 11, 2019 5:19 pm

There is no software for the MultiDock to be used with the computer. If you connect SSD media to the dock, it will show up on the computer. You can refer to the manual for configuration information.
Support: http://www.blackmagicdesign.com/support
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