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BKDad

macrumors regular
Original poster
May 16, 2011
213
179
This might've been covered here before, but I couldn't find it in a quick search.

Yesterday I "upgraded" to the latest version of Sonoma from the latest version of Ventura. The computer is a Mac Studio Max M2.

Now, audio peripherals connected to the rear USB-A ports don't work properly. Specifically, there is a constant clicking at about a 1 second repetition rate.

The same USB DAC worked perfectly since I bought this computer from a rear USB-A port. That is, until the upgrade. It's hard to believe that it's a hardware problem.

My workaround for now is to use one of the TB4 ports on the rear via a USB-C to USB-A cable.

Has anybody found a better way?

I've tried restarting coreaudio through terminal. Nada. Reboot - same. I know there's an issue with sleep in Energy Saver having to do with losing USB-A connectivity, but sleep is turned off.
 

BrianBaughn

macrumors G3
Feb 13, 2011
9,838
2,505
Baltimore, Maryland
Someone at gearspace.com says that in Sonoma their MOTU device is glitching when connected directly but seems to work fine when going through a hub…opposite of conventional wisdom.

I'm still on Ventura and my PreSonus is working OK via a powered hub.
 

BKDad

macrumors regular
Original poster
May 16, 2011
213
179
Someone at gearspace.com says that in Sonoma their MOTU device is glitching when connected directly but seems to work fine when going through a hub…opposite of conventional wisdom.

I'm still on Ventura and my PreSonus is working OK via a powered hub.

That certainly is different! I thought that it might be an issue of limiting the powering current available for the USB device. That could explain why a hub would be better. But, this device is around 70 mA, according to System report, which is well below the 500 mA limit. So, who knows?

I just think something is broken in the software. It worked fine two days ago.
 

BKDad

macrumors regular
Original poster
May 16, 2011
213
179
Sorry, I misremembered that it said “computers with Apple silicon”.
This does have Apple silicon - an M2 Max - but I can't find the setting you suggested.

Good idea, though!
 
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