Ventura USB Devices disabled and multipe Device not ejected correctly messages

That tracks with my experience. I’m going to guess that you didn’t store the encryption keys for the reformatted drives in your system keychain? If that’s the case, it does make sense to only see one message for those drives because they can be ejected by the system but not mounted again without a password prompt, which would prevent them from mounting/ejecting on a loop like an unencrypted drive.

I said this in the other thread but if you haven’t already, I’d suggest using something like Jettison to protect yourself from the possibility of these improper ejections corrupting any data on your external drives. It’s annoying that we have to find a work around to this. It’s a really unacceptable flaw that any operating system would contain a persistent bug that can damage a user’s drives and cause data loss. A company as big as Apple should be embarrassed by this— 3rd party software has to exist to prevent Apple’s own software from damaging their user’s data 🤦‍♂️

I guess it’s an issue most users (who I assume primarily use internal storage and maybe only occasionally connect external drives for temporary backups or transfers) never experience so it doesn’t get enough attention. That said, for video editors or other power users that rely on consistently connected external drives and/or elaborate peripheral hardware setups and hubs, it’s an embarrassing oversight that this persists while Apple still markets these products as tools for creative professionals who need all those things to work correctly and reliably.

Anyway, I’m not holding out much hope on this one considering how long it’s been a thing. Here’s a link to Jettison if you’re interested. I have nothing to do with them btw, I’m just passing on the solution I’ve been using the past several years because Apple doesn’t seem to care about this problem.

[Link edited by Moderator]

The dropping of usb devices, including HDs, during sleep mode is an annoying bug that has been present for quite a while now. In some versions of MacOS it's better, in others it appears to be worse. Users have reported it with hubs but it also happens to devices connected directly to the machine. In my case it's a Mac Studio, a machine that has a constant supply of power (no battery as a variable) and is equipped with high power thunderbolt ports. There could not be an excuse that a thunderbolt port couldn't supply enough power to keep a single hard drive from disconnecting, and yet it is.

It's likely not your dock or anything wrong with your hardware. You are most likely experiencing a really irritating bug that Apple needs to squash. I've already filed a report about it, maybe if other users with the same issue do as well we can finally get Apple to fix this.

First of all, not all external devices may be compatible with an M1 Mac (especially some older devices).

Since you are using a Kensington 4K Dock to connect your devices, this would be the first thing I would suspect. Does this Dock have its own independent power supply, or does it get its power from the M1 laptop?

Just how many devices do you have connected to this laptop? The laptop is only able to supply just so much power across a single USB-C port. You may need to look into using a powered hub/dock, or utilizing external devices which have their own independent power supplies.

You can try connecting just the Kensington Dock by itself to make sure there are no warnings. Then connect one device at a time to the dock until you get the error. Either that device is the source of the problem or you have reached the limit of the number of bus powered devices you can use.

External Drives STILL ejecting during sle… - Apple Community

I guess you’ll just have to Google it.

No problem, glad to help.