Catalina problem with my Mac mini 2018 + Razer Core X enclosure + RX480 GPU
 

Catalina problem with my Mac mini 2018 + Razer Core X enclosure + RX480 GPU  

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(@ben_liu)
New Member
Joined: 3 months ago
 

Hi, I'ver encountered the boot screen problem since updated to catalina 10.15 ,the monitor will glitch and black out with no signal after boot connect directly from the external graphic card. I could only use the egpu plug in after login to the system,I believe many people had the similar issue like this, but there are something more,

1\I've tried downgrade to Mojave ,thought things would back to normal, I've clean installed almost every version of Mojave from 10.14.1 to 10.14.6 , but the boot screen problem keeps happen in Mojave! 

2\The egpu fan keeps spinning when my mac turned into sleep mode, it just won't stop.

I wonder if you guys have any ideas about these? Thanks!

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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joevt
(@joevt)
Prominent Member
Joined: 2 years ago
 

Catalina updated the firmware. The boot screen and boot problem are part of the firmware. You'll have to continue connecting the eGPU after boot, or use a card that is not a RX 480 or RX 580, or wait for a new firmware fix from Apple.

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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LiE
 LiE
(@lie)
Eminent Member
Joined: 4 months ago
 

Yea I've been reading quite a few users having trouble in 10.15 with 4xx, 5xx cards. Vega 56/64 seems ok as do the 5700/XT.

2018 Mac Mini i7 / 256 / 16GB
2019 24" LG Ultrafine 4k Monitor
Razer Core X + Sapphire Nitro+ RX 5700 XT


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@ben_liu

I have the exact same issue, any updates? I Updated to Catalina before I knew this and messed up my whole system

I called apple and worked on this issue for 3 days im just learning now about the firmware. Even a downgrade back to Mojave with a clean install hasn't fixed it

 

MAc Mini 2019 WIth EGFX Sonnet and RX 580.

Was working perfectly fine with Mojave. On a whim I decided to upgrade to Catalina. Wow what a mistake. I had been using the TB3 to Egpu then out to the monitor. Now when I start up I get the apple logo (2-3 times its normal size) then the empty progress bar. The screen flashes then "No signal"

Downgraded to Mojave via time machine: same issue

Fresh install of Mojave: Same issue

Fresh install of Catalina: same issue

 

It works if I use the internal HDMi and have the eGPU used over TB3 but this is not ideal as there is a reduced performance. 

I do get mirrored displays in some configs

Apple had me doing the SMC and PRAM dance for hours and Ive probably restored the system a dozen times, loosing my mind here.

 

Any fixes for this? I don't think its ok that I should have to settle for reduced performance just because of this bogus software.

Currently running on Mojave time machine backup but I am wondering if I should get back to catalina and use the same work around so I can at least get the updates when/if they fix it.

please help

@joevt

Im thinking of getting a Vega 56 to fix this issue it’s not that much more money. Are you certain it affects the 400 and 500 series but not the Vega architecture? 

This post was modified 3 months ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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joevt
(@joevt)
Prominent Member
Joined: 2 years ago
 

@ted_dawson I am not certain. Need to find someone with a Mac mini 2018 build and Catalina and different card.

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@joevt

I just got an email back from Sonnet and they said that the v56 bypassed the firmware issue. I ordered one on eBay for myself 

 

 

 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@ben_liu)
New Member
Joined: 3 months ago
 

@ted_dawson

please keep update how the vega 56 works, but now I could only use the internal gpu and waiting if apple would fix it, I'm not quite rely on the egpu for my daily uses, but the problem is just frustrating!

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@ben_liu

Heres the email I got from them

Hello Ted,

When you upgraded to Catalina, your Mac mini got a firmware update that cannot be reversed. You can wait for the Catalina 10.15.1 release that hopefully should fix the issue. If you need a GPU now, the Vega 56 worked in our tests.

Regards,

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@ben_liu)
New Member
Joined: 3 months ago
 

@ted_dawson

Thanks Ted, How is your Vega56 works?

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@stefan_strangman)
New Member
Joined: 3 months ago
 

@ted_dawson

I’m having issues with the Vega 56 since upgrading to the Catalina beta 15.1 but it worked alright with Catalina 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@ben_liu Yes been working fine - I get purple lines when it boots for like 1 second then it works fine. 

@stefan_strangman Mine is working fine for the most part. I get a big Apple symbol then some purple lines at boot but it quickly moves on from that. It doesn’t recognize my displays native resolution so i have to set that in preferences but besides that it’s working well for me 

This post was modified 3 months ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@michael_t)
New Member
Joined: 2 months ago
 

I have not updated my Mac mini i7 2018 + Razer Core X + RX580 to Catalina but following a recent Mojave update I am now experiencing the issues described in this thread, namely no screen on boot-up. Prior to this update my system worked flawlessly. 

Mac mini 2018, 32gb Ram eGPU: Razer Core X + RX580 + Dell UltraSharp U2518D 25" QHD 2560x1440 2K. Used for photo editing.


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@michael_t

welcome to the club. I upgraded to Vega to get around this issue. I still have weird screen resolution issues and purple lines at boot. Also apps dont use the GOU properly even with Prefer EGPU checked and in-app preferences pointed to EGPU. 

imovie no EGPU usage, lightroom uses it in develop module but when "enchanced details" is used, It says will require a good GPU to work well, I saw it was using integrated graphics 100% and EGPU 0 %

I hope enough people complain to apple about this to get it fixed. Mine worked so well on Mojave

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@michael_t)
New Member
Joined: 2 months ago
 

having taken the time and trouble to post above about my issue, I decided to fix it. Happy to report that I tested my eGPU{ Razer Core X + RX580 using Geekbench 5 "compute" , with the Mac mini GPU disconnected and it was successful. 

Mac mini 2018, 32gb Ram eGPU: Razer Core X + RX580 + Dell UltraSharp U2518D 25" QHD 2560x1440 2K. Used for photo editing.


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(@ted_dawson)
Active Member
Joined: 3 months ago
 

@michael_t

How exactly did you fix it? 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@michael_t)
New Member
Joined: 2 months ago
 

@ted_dawson

I do not have FileVault turned on, but irrespective following Apple's advice works.  

1. If you have a Mac mini (2018) with FileVault turned on, make sure to connect your primary display directly to Mac mini during startup. After you log in and see the macOS Desktop, you can unplug the display from Mac mini and connect it to your eGPU

https://support.apple.com/en-us/HT208544

 

 

Mac mini 2018, 32gb Ram eGPU: Razer Core X + RX580 + Dell UltraSharp U2518D 25" QHD 2560x1440 2K. Used for photo editing.


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(@ben_liu)
New Member
Joined: 3 months ago
 

@michael_t

Thanks Micheal 

But it's shame for apple to make this advice, maybe next time apple should release an expensive accessory to plug and unplug display automatically so people don't need to stand up from their seat to reach the cable far away at the back of the machine and do those stupid steps. 

Oh, and people encounter this with fileVault turned OFF.

sorry no offence, Just feel sorry for apple. 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@thomasmit)
New Member
Joined: 1 year ago
 
Posted by: @michael_t

@ted_dawson

I do not have FileVault turned on, but irrespective following Apple's advice works.  

1. If you have a Mac mini (2018) with FileVault turned on, make sure to connect your primary display directly to Mac mini during startup. After you log in and see the macOS Desktop, you can unplug the display from Mac mini and connect it to your eGPU

https://support.apple.com/en-us/HT208544

 

 

Unfortunately that's not a fix, it's a work around and the very first post outlined this.

 The issue is why won't it load it at boot as it should and did with previous OS's. 

 

This post was modified 2 months ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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zhangd116
(@zhangd116)
Active Member
Joined: 3 years ago
 

I just updated mine to 10.15.2

Boot ROM Version: 1037.60.58.0.0 (iBridge: 17.16.12551.0.0,0)

And the issue persists 🙁   While powering off the enclosure, waiting for a few seconds and powering it back on usually brings the display back, it would be great to see this bug fixed.

This post was modified 2 months ago

2018 Mac Mini i7 with AMD Radeon RX 5700 in Razer Core X


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(@massimo_franzese)
Trusted Member
Joined: 2 months ago
 

I have a vega 64 and have the same problem 

to boot I do the following

1. turn everything off

2. boot mac mini

3. wait a minute or so

4. turn on egpu

 with this sequence it boots fine without plugging another screen or cable

 

Mac Mini 2018 3.2 Ghz 6 cores
Razer X enclosure with Sapphire Vega 64 Nitro
Benq PD2720U


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(@massimo_franzese)
Trusted Member
Joined: 2 months ago
 

I forgot to mention I tried connecting the vega with HDMI and it booted right away 

the issue seems to be with displayport in my set up

Mac Mini 2018 3.2 Ghz 6 cores
Razer X enclosure with Sapphire Vega 64 Nitro
Benq PD2720U


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(@tariq_yahiaoui)
New Member
Joined: 1 month ago
 

@ted_dawson

This ain't a Catalina update issue, I'm still on Mojave running a Macmini 2018 coupled to a Sonnet Radeon 7 eGpu and I think it is related to a buggy security update: I started experiencing the funny purple lines with the sep/oct security update and the black startup screen with the December security/safari update! I could get the system going for a while with a PRAM reset but the issue would soon show up again!

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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(@michael_t)
New Member
Joined: 2 months ago
 

@tariq_yahiaoui

Indeed that is what I suggested in my first post here. As I posted, I am using Mojave and the problems arose since a recent update. I suspect it is related to the T2 chip.. 

This post was modified 1 month ago

Mac mini 2018, 32gb Ram eGPU: Razer Core X + RX580 + Dell UltraSharp U2518D 25" QHD 2560x1440 2K. Used for photo editing.


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(@sdedalus1)
Active Member
Joined: 3 years ago
 

Ugh, as @michael_t says, Mojave Security Update 2019-002 must also contain the Catalina firmware that wrecks Bootcamp eGPU support with 480/580 and cannot be reverted. I vaguely had seen there were problems with Catalina and so was avoiding it, but just got screwed with the Mojave security update. Although there is a workaround for MacOS (plug in in after boot), how can I boot into Windows now? I normally plug egpu at startup manager when choosing Windows drive, but now only black screen results. If I wait until Windows desktop, egpu not detected.

This post was modified 1 week ago

Mac Mini 2018 + Akitio Thunder2 + AMD RX580 8GB


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semohe
(@semohe)
Active Member
Joined: 7 months ago
 

I don’t have a problem in mac os with catalina 10.15.2, i can just login with egpu on all the time. the problem is when i try to boot into windows 10 1903 it will stuck in a black screen. But i found a way to boot to windows for now. Hopefully apple fix this on the next update. 

2018 mac mini i5 + sonnet 550 + vega 56


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(@sdedalus1)
Active Member
Joined: 3 years ago
 

@semohe

Hmm, I guess I will have to buy a USB-C to HDMI converter to try.

I have tried the following and none of them work:

  • normal, previously working procedure: boot to Startup Manager, plug egpu at same time as hitting return to boot into Windows (I usually do this blind, but you could also attach HDMI cable direct from mini to monitor, then unplug). The new firmware shows the Startup Manager when booting from EGPU, but black screen after booting; I preferred the other way, when boot chooser was black but you could see the desktop!
  • reset NVRAM
  • reinstall MacOS Mojave from Recovery partition
  • leaving monitor plugged into HDMI port on the Mac Mini, plugging egpu at Startup Manager, booting into Windows, and: a)  pulling HDMI plug at Windows flag (still black screen at egpu/displayport), or b) leaving HDMI plugged in (got a flickering Windows logo then black screen on HDMI and a black screen on egpu/ Displayport).
  • leaving monitor plugged into HDMI port on the Mac Mini, booting into Windows, plugging egpu at login screen: 580 appears in Device Manager with error 12
  • leaving monitor plugged into HDMI port on the Mac Mini, plugging egpu before boot, booting into MacOS: black screen on egpu/displayport, blank green screen on HDMI
This post was modified 1 week ago

Mac Mini 2018 + Akitio Thunder2 + AMD RX580 8GB


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