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watakoola

macrumors regular
Aug 23, 2010
212
166
Australia
Yep. Running well, plus.... was able to boot with my eGPU plugged in!

However, my right monitor shows the Apple logo (but no progress bar) and then the left fires up with the login screen. That’s kinda weird as my left monitor is my primary (for menu bars etc.) so it should ‘show’ both Apple logo and login screen.

I'm gonna run with that and see if Apple 'improves' it with future releases. It's a massive improvement over Catalina.
 

Janeilfen

macrumors 6502
Feb 11, 2018
258
55
indeed - I wonder what the original poster was expecting? A round of applause?

Its installing a new OS, not going over the top in the trenches...
No, it certainly isn't analogous to "going over the top in the trenches" but if it does go wrong, some people may be stuffed if they need their Mac for work or whatever. Personally, i am not going to update until 1 or 2 updates have been applied. Apple have a history of not getting everything right when they release an OS to the world. I am not knocking Apple. I would hate to be responsible if it went drastically wrong. Also, for me, I use CCC for backups and they have advised to wait.
 

djc6

macrumors 6502a
Aug 11, 2007
724
255
Cleveland, OH
I am curious if Big Sur has newer HDMI adapter firmware. Would someone who has upgraded mind checking?

Apple Menu -> About this Mac -> System Report -> Graphics/Displays -> Adapter Firmware Version.

Under 10.15.7 its Version 2.19. You may have multiple adapter firmware versions if you have multiple displays.

Thanks!
 

weaztek

macrumors 6502
Aug 28, 2009
330
155
Madison
This is why you should base your platform decision on what applications are required for the job, not the other way around.

Apple will continue to sell Intel based Mac for the foreseeable future, meaning support is all well and good. And you’re still able to BootCamp if needed.

indeed - I wonder what the original poster was expecting? A round of applause?

Its installing a new OS, not going over the top in the trenches...
I don't know if you added Catalina 10.15 to a Mini back in Oct. 2019? It was not a stable platform on the Mini for several months. As a matter of fact, I had kernel panics and non-functioning apps every single day and had to downgrade to Mojave from a backup. Total pain in the neck. I'd go so far as to say it was the worst Mac OS release in my 25 years of owning Macs.

So early adopters have every right to be skeptical of how the new systems works.
 
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Duncan-UK

macrumors 6502
Sep 17, 2006
396
642
I updated my 2018 mini on day
I don't know if you added Catalina 10.15 to a Mini back in Oct. 2019? It was not a stable platform on the Mini for several months. As a matter of fact, I had kernel panics and non-functioning apps every single day and had to downgrade to Mojave from a backup. Total pain in the neck. I'd go so far as to say it was the worst Mac OS release in my 25 years of owning Macs.

So early adopters have every right to be skeptical of how the new systems works.
I upgraded my 2018 mini to Catalina on day one with zero issues. Done the same today with big sur.
 

weaztek

macrumors 6502
Aug 28, 2009
330
155
Madison
I updated my 2018 mini on day

I upgraded my 2018 mini to Catalina on day one with zero issues. Done the same today with big sur.
Consider yourself lucky. The HDMI port did not play nice with Catalina and Photoshop was practically unusable.
 
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djc6

macrumors 6502a
Aug 11, 2007
724
255
Cleveland, OH
My HDMI port also hasn't worked right since Mojave, why I was curious if Big Sur included a firmware update (it seems it does not).
 

weaztek

macrumors 6502
Aug 28, 2009
330
155
Madison
My HDMI port also hasn't worked right since Mojave, why I was curious if Big Sur included a firmware update (it seems it does not).
A bunch of us switched from an HDMI cable to USB-C to DisplayPort Cables and it helps. I haven't heard of a single person other than the poster above who didn't have major problems with 2018 Mini's over HDMI.
 

watakoola

macrumors regular
Aug 23, 2010
212
166
Australia
Using Catalina (or Big Sur), I booted my mini via HDMI to a single monitor (before I started my eGPU) so it worked for me...
 

MevetS

macrumors 6502
Dec 27, 2018
375
299
Earth
A bunch of us switched from an HDMI cable to USB-C to DisplayPort Cables and it helps. I haven't heard of a single person other than the poster above who didn't have major problems with 2018 Mini's over HDMI.
I’ve not had any HDMI issues. Bluetooth and eGPU issues, since sorted. But HDMI has always worked.
 

Janeilfen

macrumors 6502
Feb 11, 2018
258
55
A bunch of us switched from an HDMI cable to USB-C to DisplayPort Cables and it helps. I haven't heard of a single person other than the poster above who didn't have major problems with 2018 Mini's over HDMI.
I haven't had any major problems. I have had the odd issue where my monitor will go dark once or twice when i first wake up my 2018 mini. Annoying but it hasn't happened recently.
 

jayducharme

macrumors 601
Jun 22, 2006
4,060
4,277
The thick of it
My update went smoothly as well. I have an eGPU, and FINALLY the mini boots without having to swap in an HDMI cable. So that alone makes me happy. And I really like the new interface.
 
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MacsRSour

macrumors newbie
Jan 25, 2019
19
2
A bunch of us switched from an HDMI cable to USB-C to DisplayPort Cables and it helps. I haven't heard of a single person other than the poster above who didn't have major problems with 2018 Mini's over HDMI.
Yes - I also had a bunch of very annoying HDMI to monitor issues with EGPu with Catalina. The worst is when the Mini wouldn't even boot with Mini directly to monitor via HDMI. I got sick of things, sold both hdmi monitors and got a single larger monitor with USB-C
 

jontsai

macrumors newbie
May 2, 2020
1
0
Oh wow, am I glad to discover this thread, to know that I'm not the only one suffering problems.

My Setup

1. Dell U3818DW 38" via USB-C (works)
2. Acer B296CL 29" via USB-C to DisplayPort (works)
3. Acer B296CL 29" via HDMI (seldom works, usually fails)

I have a 2018 Mac Mini with 3 displays, and 2 work fine but the third has problems over HDMI. I recently upgraded to Big Sur but was also having problems with Catalina. Didn't have the opportunity to try with Mojave because I added the two 29" monitors later, when the computer was already on Catalina (combining my setups after COVID/shelter-in-place started).

If I restart my computer several times, maybe 2/10 times my third display over HDMI will come back on. When it comes on, it will work fine until eventually the computer goes to sleep and when waking, the HDMI monitor will turn on successfully about 30% of the time. When it's plugged in and I press a button on the monitor to wake/switch input, the other two working displays will flash/flicker a couple of times, as if to adapt to the third display.

Windows will get moved around, and the system thinks there are 3 displays under "Displays > Arrangement" and also in "System Information > Hardware > Graphics/Displays" -- but the monitor will say there is no signal and remain off.

At this point, I've given up hope of a reliable remedy, and am at the mercy of Apple updating their software/drivers for HDMI displays.

Screen Shot 2020-11-29 at 10.27.21 PM.png

Screen Shot 2020-11-29 at 10.27.59 PM.png
 
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