Level 1

43 points

M1 Mac Mini, Displays wont turn on after wake from sleep

Ive a brand new M1 mac mini with 2 external displays 1 on USBC and another on HDMI. One is a samsung 32 4k and the other is an asus 28 4k. Both work perfectly with the mac ordinarily, however on wake from sleep often one or both of them wont turn back on. Turning them off and on doesn't seem to help but unplugging and replugging the cables into the back of the Mac Mini seems to get them working again. This seems to be rather random, sometimes its just one monitor sometimes its the other, sometimes i get graphical glitches on one of the screens (agains fixed by unplugging and replugging the monitor cable into the back of the mini). To me this seems like a software glitch with the graphics drivers I would assume the next update will fix this. I just wanted to flag it up to see if anyone else is experiencing the same thing?

Mac mini, macOS 11.0

Posted on Nov 30, 2020 1:21 AM

Top-ranking reply

Robert Rodriguez

Level 2

189 points

Posted on Jan 31, 2021 7:27 PM

I just saw an article today on MacRumors about the most recent seeding of 11.2, which gives me hope because it included the following:

"When ‌macOS Big Sur‌ 11.2 sees a release, Apple apps will be compatible with VPN apps and will no longer be able to bypass firewalls and other security tools.

According to Apple's release notes, the update also improves Bluetooth reliability and includes multiple bug fixes.

‌macOS Big Sur‌ 11.2 improves Bluetooth reliability and fixes the following issues:

- External displays may show a black screen when connected to a Mac mini (M1, 2020) using an HDMI to DVI converter

- Edits to Apple ProRAW photos in the Photos app may not save

- iCloud Drive could turn off after disabling the ‌iCloud Drive‌ Desktop & Documents Folders option

- System Preferences may not unlock when entering your administrator password

- Globe key may not display the Emoji & Symbols pane when pressed

The update addresses a bug that could cause external displays to show a black screen when connected to an ‌M1‌ ‌Mac mini‌ using an HDMI to DVI converter, and it fixes an issue that resulted in edits to Apple ProRaw photos in the ‌Photos‌ app not to save. It also includes fixes for ‌iCloud Drive‌, System Preferences, and more.

View in context

255 replies

hcsitas

Level 6

13,964 points

Dec 10, 2020 8:36 AM in response to pheuter

How many monitors? Dongled? Long cable? = problem.

pheuter

Level 1

4 points

Dec 10, 2020 8:40 AM in response to hcsitas

Without the adapter, how else would I be able to connect my HDMI monitor to the MacBook Air?

hcsitas

Level 6

13,964 points

Dec 10, 2020 8:41 AM in response to pheuter

Good question, wrong forum...good luck.

pheuter

Level 1

4 points

Dec 10, 2020 8:50 AM in response to hcsitas

I'm using the official Apple adapter for HDMI to USB-C. Suggesting that I buy another monitor isn't exactly relevant or helpful feedback either.

hcsitas

Level 6

13,964 points

Dec 10, 2020 8:59 AM in response to pheuter

That adapter is ancient history. Maybe Apple will come out with a new one, maybe not. What’s wrong with the Air’s Retina display? You paid for it ‘member?

Pearsnet Author

Level 1

43 points

Dec 13, 2020 12:33 AM in response to realtyrick

Ive just tried this.. ill await the results.

Jan 5, 2021 6:46 PM in response to Pearsnet

I’m having the same exact problem. Also my mouse Sometimes freezes

Jan 8, 2021 3:15 PM in response to Robert Rodriguez

So their "support" was to make you buy a $69 adaptor for their software issue that still did not help. smh.🙄

Jan 9, 2021 3:03 PM in response to Xyz127

Can you please give me the Amazon link that you use to purchase the HDMI hub?

Jan 13, 2021 5:18 PM in response to Pearsnet

I haver this same issue. My display is a Wacom Cintiq Pro 24

Jan 14, 2021 1:34 PM in response to Robert Rodriguez

the XPUS 8port adapter just exhibited the same problem as the Apple multipart adapter, so it may not be a solution for everyone. Booo

Jan 15, 2021 1:22 PM in response to hcsitas

That's not a fix. That's a workaround.

hcsitas

Level 6

13,964 points

Jan 15, 2021 1:24 PM in response to Robert Rodriguez

Nope, it’s a permanent fix. Disable and be happy.

trevoz

Level 4

1,990 points

Jan 15, 2021 1:36 PM in response to hcsitas

Disabling sleep is neither environmentally nor financially responsible and certainly does not make one happy!

hcsitas

Level 6

13,964 points

Jan 15, 2021 1:54 PM in response to trevoz

Those were the days! I have some of those ancient computers in my basement.

Thankfully long over. With today’s tech, disabling sleep is completely unnecessary. Amazing huh? 🍻

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

M1 Mac Mini, Displays wont turn on after wake from sleep