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DVD player and printer USB no longer detected with MBA M1 ?

Using the two USB-C of my MacBookAir 2020 M1, I could perfectly use my external SSD, a printer, a DVD/CD player and of course the external monitor.


Some weeks ago that stopped only for the printer (a Brother laser) and a DVD (Samsung) which are simply no longer detected (nothing in System Information under hardware). However the SSD and monitor continue to work on the ports as before.


The printer and DVD player each work perfectly with their same adapter USB-A to -C cables on another Ventura Mac, with M2 this one. I have exhausted all my known remedies : upgraded the MacBook to Ventura 13.5, put a reset to SMC and NVRAM, started once in safe mode, tried to put USB-A hubs between the USB-C ports; tried in the DVD player several disks and including blank ones to burn ; nothing will work. The DVD player powers nicely up and spins like it does elsewhere when it is recognized, only it isn't. So there should be no power issue at least. The sudden denial of detection came maybe with a recent Ventura update, I do not know which in detail.


So what can be my next steps to get my DVD and printer detected ?


-- is downgrading to Monterey a shot worth taking -- ?

MacBook Air (M1, 2020)

Posted on Aug 5, 2023 1:38 AM

Question marked as Top-ranking reply

Posted on Aug 5, 2023 3:47 PM

I wonder if this is a security issue.


I thought I read somewhere that if you are running Ventura on an Apple Silicon laptop – which seems to describe your case – you have to "authorize" directly-connected USB and Thunderbolt devices.


Here we go …


https://www.computerworld.com/article/3669854/what-is-usb-restricted-mode-in-macos-ventura-and-why-do-you-want-it.html


Allow accessories to connect to Mac - Apple Support


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6 replies
Question marked as Top-ranking reply

Aug 5, 2023 3:47 PM in response to Traconnade

I wonder if this is a security issue.


I thought I read somewhere that if you are running Ventura on an Apple Silicon laptop – which seems to describe your case – you have to "authorize" directly-connected USB and Thunderbolt devices.


Here we go …


https://www.computerworld.com/article/3669854/what-is-usb-restricted-mode-in-macos-ventura-and-why-do-you-want-it.html


Allow accessories to connect to Mac - Apple Support


Aug 5, 2023 2:04 AM in response to WheelieNick

Thanks for your suggestion, honestly NO because both devices continue to run with their drivers under Ventura on another Mac. I tried with another DVD player that is certified to work with latest OS as well, same result.


I forgot to write that I pushed the Macbook through the Apple diagnostics software, with ironically no anomaly detected.

Aug 6, 2023 2:30 AM in response to ku4hx

"updated and finely tuned as it requires.." well yes but what if the latest update is not what was required but rather the source of annoyance? Driver working on M2 excludes the ARM pitfall. This doesn't sound good :


Macbook air 2020 M1 USB-C Port - Apple Community

Unable to use USB-powered devices with Ma… - Apple Community

Wonder if I should wait & pray for Apple Engineering's (20b$ yearly budget) Sonoma to fix it, downgrade to Monterey, or "see" my store, or any more ideas which private parts to rub in this Macbook Air M1 2020 ?

Aug 5, 2023 5:11 AM in response to Traconnade

"on another Mac". Don't get caught in the trap thinking any two Macs are exactly alike and respond perfectly alike. They're not and if you search this forum you'll find threads to that effect.


You need to deal with every device as an individual and keep it updated and finely tuned as it requires..




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DVD player and printer USB no longer detected with MBA M1 ?

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