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PianoPro

macrumors 6502a
Sep 4, 2018
511
385
Wow, this is the thing I wanted to move away from.
I'm now running a Hackintosh and have 2 cables connected to my screen, one that starts from my motherboard (equivalent off plugging a cable into the Mac Mini), and one that starts from my GPU (equivalent of plugging it in an eGPU). I always have to switch my screen to the first one, after boot go to the second one. Sad that this would still be the case with a Mac Mini.
That's not an acceptable solution to me. But according to the 2 comments above, if you don't use FileVault the problem goes away, and I don't. So that is all I need if that indeed solves the problem.
 

inmnbob

macrumors regular
Original poster
Aug 6, 2014
247
87
Chicago and Twin Cities
PROBLEM SOLVED.

Okay finally the Blackmagic eGPU and Mac Mini are working together correctly without hacks. It will require one change that some of you may not care about with FileVault.

Having FileVault turned on created that extra level of security what prevented the Mac from booting into the eGPU and then the monitor.

I deactivated FileVault and now I can reboot the Mac and I will get the normal startup login screens that are visible with the monitor. The eGPU is connected correctly and active on boot as indicated by the icon in the menu bar. Whew!!!!

Thanks for all the different tips and ideas ultimately it was a combination of all of those ideas that got me to the solution

My only remaining problem is that the monitor I am using (new Samsung Thinderbot) doesn’t go into full sleep mode connected to the eGPU. The MacOS software does go into sleep mode and blanks the screen but the monitor keeps trying to connect to a video source. I would love someone else to figure that one out.
 

Spectrum

macrumors 68000
Mar 23, 2005
1,808
1,115
Never quite sure
PROBLEM SOLVED.

Okay finally the Blackmagic eGPU and Mac Mini are working together correctly without hacks. It will require one change that some of you may not care about with FileVault.

Having FileVault turned on created that extra level of security what prevented the Mac from booting into the eGPU and then the monitor.

I deactivated FileVault and now I can reboot the Mac and I will get the normal startup login screens that are visible with the monitor. The eGPU is connected correctly and active on boot as indicated by the icon in the menu bar. Whew!!!!

Thanks for all the different tips and ideas ultimately it was a combination of all of those ideas that got me to the solution

My only remaining problem is that the monitor I am using (new Samsung Thinderbot) doesn’t go into full sleep mode connected to the eGPU. The MacOS software does go into sleep mode and blanks the screen but the monitor keeps trying to connect to a video source. I would love someone else to figure that one out.
Great! But it sounds as if the Black Magic may not be powering off completely then?
 

ElectronGuru

macrumors 68000
Sep 5, 2013
1,656
490
Oregon, USA
My only remaining problem is that the monitor I am using (new Samsung Thinderbot) doesn’t go into full sleep mode connected to the eGPU. The MacOS software does go into sleep mode and blanks the screen but the monitor keeps trying to connect to a video source. I would love someone else to figure that one out.
My Sammy TV does this. I turned on the setting for “switch off after x minutes of no signal“ option. But it does require manual turn on.
 

Spytap

macrumors regular
Oct 8, 2010
135
93
PROBLEM SOLVED.

Okay finally the Blackmagic eGPU and Mac Mini are working together correctly without hacks. It will require one change that some of you may not care about with FileVault.

Having FileVault turned on created that extra level of security what prevented the Mac from booting into the eGPU and then the monitor.

I deactivated FileVault and now I can reboot the Mac and I will get the normal startup login screens that are visible with the monitor. The eGPU is connected correctly and active on boot as indicated by the icon in the menu bar. Whew!!!!

Thanks for all the different tips and ideas ultimately it was a combination of all of those ideas that got me to the solution

My only remaining problem is that the monitor I am using (new Samsung Thinderbot) doesn’t go into full sleep mode connected to the eGPU. The MacOS software does go into sleep mode and blanks the screen but the monitor keeps trying to connect to a video source. I would love someone else to figure that one out.

While it's great that there's a solution, turning off FileVault is a nonstarter for a lot of us. If this is the "solution" I think I still consider it a broken implementation.
 
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inmnbob

macrumors regular
Original poster
Aug 6, 2014
247
87
Chicago and Twin Cities
Fair enough. Apple used the word currently when indicating that the eGPUs don’t work at boot up with FileVault. Maybe that is something coming. So the other options are typing in passwords blind, getting a second monitor or waiting.
 

DRDR

macrumors regular
Jul 23, 2008
210
195
I strongly recommend against disabling FileVault: The MacMini is very portable and therefore easily taken away when someone brakes into your house.

But you can still use it with an eGPU, provided that there is only one user account:

If there is only one user account (disable the guest user!) you can still use FileVault by switching on the Mac, wating a few seconds and then typing blindly the FileVault/account password. This works, because with only one user the password box will be active by default and waiting for input. It does not work with more than one user, because then you have to choose the user by mouse first.
 
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PJivan

macrumors 6502
Aug 19, 2015
450
453
What are you temperatures while running external gpu? IGpu should be 15W alone so the cpu must benefit temperature wise to have it disabled and the performance difference between i5 and i7 may increase due to less throttling
 

jrlcopy

macrumors 6502a
Jun 20, 2007
556
895
jrlcopy - which version of the Vega 56 do you have? Are you happy with performance in the Razer Core X? I think this is the combo I'm going with for my new i7 Mac Mini but in Canada prices for the Vega 56 are through the roof at the moment!
SAPPHIRE Radeon RX Vega 56 DirectX 12 100420L
Is the one I bought, it's one of the original reference cards. I've been thrilled with it, I also bought it on day one when it came out, so I was thrilled with the original intro price before crypto destroyed them. :)
 

edtorious

macrumors 65816
Aug 14, 2007
1,212
78
San Diego, California
I'm having the same problem and I don't have FileVault nor Firmware Password on. My setup is Viewsonic VX3211-4K monitor connected to Sonnet eGFX Breakaway Box 650 eGPU with Sapphire Radeon RX Vega 64 via HDMI and then from eGPU to my Mac Mini connected via USB-C. I do have an external drive that I boot from and not sure if that's causing problem. I'm also waiting for my DisplayPort cable to come in and hopefully I don't get the same problem. What cables are you guys using from your external display to your eGPU?
[doublepost=1543300009][/doublepost]
SAPPHIRE Radeon RX Vega 56 DirectX 12 100420L
Is the one I bought, it's one of the original reference cards. I've been thrilled with it, I also bought it on day one when it came out, so I was thrilled with the original intro price before crypto destroyed them. :)
What cable do you use to connect your eGPU to your Monitor?
 
Last edited:

Spectrum

macrumors 68000
Mar 23, 2005
1,808
1,115
Never quite sure
What are you temperatures while running external gpu? IGpu should be 15W alone so the cpu must benefit temperature wise to have it disabled and the performance difference between i5 and i7 may increase due to less throttling
An interesting point, but I guess this only is relevant if you push the iGPU at the same time as the CPU.
So will likely be workflow-dependent. Possibly dependent on total RAM and 4K/5K (and scaling) screens attached too...
I know that if I stress the iGPU on my 2011 mac mini and 4K iMac, it can cause the CPU speed to throttle down.
 

Jamers99

macrumors regular
Apr 10, 2015
207
187
Lutz, FL
I'm hoping to see more BlacMagic eGPU's for sale used on eBay after Christmas. I'd like to connect one to my Mac Mini.
 

edtorious

macrumors 65816
Aug 14, 2007
1,212
78
San Diego, California
I'm having the same problem and I don't have FileVault nor Firmware Password on. My setup is Viewsonic VX3211-4K monitor connected to Sonnet eGFX Breakaway Box 650 eGPU with Sapphire Radeon RX Vega 64 via HDMI and then from eGPU to my Mac Mini connected via USB-C. I do have an external drive that I boot from and not sure if that's causing problem. I'm also waiting for my DisplayPort cable to come in and hopefully I don't get the same problem. What cables are you guys using from your external display to your eGPU?
[doublepost=1543300009][/doublepost]
What cable do you use to connect your eGPU to your Monitor?

So finally got my Displayport cable. Bad news and good news. I plugged the DP cable from my monitor to the eGPU and then I plugged the USB-C cable from my eGPU to the Mac. As usual the monitor is not getting any signal during the process, I cannot see the Apple logo. But the good news is, after the boot up, the monitor will get a signal finally and show me the login screen. I tried to restart and it's the same result. I'm not sure what will happen if it goes to sleep.

So for now I'm happy but if I ever need to do a recovery mode, that's when I'm going to have to do a direct connection from my monitor to the Mac instead. It's a bit hassle but I guess I'll have to live with it hopefully for now. I hope Apple find a fix. If anybody else has a suggestion, I will greatly appreciate it. Thank you.
 
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rmdeluca

macrumors 6502
Oct 30, 2018
250
415
So for now I'm happy but if I ever need to do a recovery mode, that's when I'm going to have to do a direct connection from my monitor to the Mac instead. It's a bit hassle but I guess I'll have to live with it hopefully for now. I hope Apple find a fix. If anybody else has a suggestion, I will greatly appreciate it. Thank you.

The card not displaying anything until fully booted is mostly a BIOS/firmware thing. There are cards that can do this (and companies that can flash certain cards to do this) but IMO it's usually easier to just connect your Mac to one of the other inputs on your monitor and switch inputs if you need to see the boot menu/screen. That's what I do.

Since I turned off that "second" display in Windows, after booting the iGPU goes idle and no actual signal is passed over the monitor cable connected to the back of the Mini.
 

DVD9

macrumors 6502a
Feb 18, 2010
817
581
PROBLEM SOLVED.

Having FileVault turned on created that extra level of security what prevented the Mac from booting into the eGPU and then the monitor.

I deactivated FileVault and now I can reboot the Mac and I will get the normal startup login screens that are visible with the monitor. The eGPU is connected correctly and active on boot as indicated by the icon in the menu bar. Whew!!!!

That's awesome. Now anyone can get into your computer. All you have to do to get your grossly overpriced Apple-Taxed machine to work as it should out of the box is give up encryption.

Tim Cook said that security was very important to Apple.
 

inmnbob

macrumors regular
Original poster
Aug 6, 2014
247
87
Chicago and Twin Cities
That's awesome. Now anyone can get into your computer. All you have to do to get your grossly overpriced Apple-Taxed machine to work as it should out of the box is give up encryption.

Tim Cook said that security was very important to Apple.
That is true-- I took the BM eGPU back --too many problems with everything. I am hoping that this is fixed in the next release and I think if I read between the lines and the marketing images that the eGPU Pro will work better with the Mac Mini. let's see if I am correct
 

- rob -

macrumors 65816
Apr 18, 2012
1,030
705
Oakland, CA
Just set up a mini today with the bm. Noticed this issue. I won’t turn off FileVault. Any other workarounds since last post?
 

- rob -

macrumors 65816
Apr 18, 2012
1,030
705
Oakland, CA
I suppose I could actually get another 27”. I am kind of waiting for the glasses—hoping to avoid spending more on today’s display tech.
 
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