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harrisonjr98

macrumors 6502
Original poster
Hey all. Been a happy TS4 user for a bit under two years now on my M1 Pro 14" MBP. Truthfully it made me understand why people get excited about docks - the one cable solution is awesome! But in the last month or so I've had a litany of issues crop up. I don't know how much of it may be due to Tahoe (26.2) but it worked fine for a couple of weeks following that release. All of my Thunderbolt driver versions are current.

I have the following connections running from my TS4:

Displays: 1 Apple Studio Display

Storage: Samsung T7 Shield 4TB SSD, OWC Mercury Elite Pro 3.5" Enclosure with 8TB HDD (nightly backups)

Audio: MOTU M4 Audio Interface

Misc: Ethernet LAN, Keychron keyboard and Logitech mouse.

So, not a very exotic setup overall. For the last several weeks, about half the time I put the Mac to sleep the TS4 seems to just forget about most of the USB devices. The storage will not connect (not even visible in Disk Utility as unmounted) and the MOTU M4, while showing as an audio output device, can't seem to actually receive any audio from the Mac. The keyboard and mouse continue to work fine most of the time. When this happens, fully disconnecting and reconnecting the USB devices does not resolve the issue, but a full restart of the Mac (or plugging them directly into the Mac) does. Interestingly, I also tried to use the TS4's built-in SD reader one time after the USB issue occurred and that also did not work until restarting the Mac. I have tried resetting the TS4 by removing its barrel plug for a couple of minutes as well, and it did not fix anything.

At first, I was mostly noticing this problem because every morning when I woke the Mac I would find a notification that my overnight automated backup of the internal drive + Samsung SSD to the 8TB external had failed. I use Carbon Copy Cloner to have it automatically mount the backup disk every night, run the task, and unmount the disk afterward. This has all worked flawlessly for many months with everything connected to the TS4, until recently. At first I thought that something about the CCC task might be the root cause, but as it also affects other USB devices I am now thinking it is something with the TS4 and/or Tahoe.

Has anyone else had this problem, now or in the past? Any basic troubleshooting advice? It is really unfortunate that the device that had simplified my setup so well is now giving me headaches.
 
That's an interesting thought. I don't *think* that would be the cause because the MacBook is still getting power when this happens, and the keyboard/mouse/studio display/networking all still work without issue.
 
My advice for folks having problems with sleep is yet another "Fishrrman dumb solution":

Don't put it to sleep.

The problems with "waking up after sleep" will disappear if you never put it to sleep in the first place.

I'd just put the display (as distinguished from the Mac) to sleep, or... turn the brightness all the way down.

Then, just leave it. I'll take a GUESS that the difference in power consumption between "sleeping" and "awake, but idling" is very low... almost next-to-nothing.

And... at night... I'd shut it down, all the way off.
Things seem to just work better after a fresh start in the morning...
 
As much as I appreciate your creativity, that won't work for me for a few reasons.

1) I don't believe the Studio Display *can* be put to sleep independently of the Mac, though I'd love to be proven wrong on this.

2) I guess I could just go to the lock screen and then reduce the brightness on the Studio Display and the internal display (which I use as a second monitor) but that's kind of a janky workaround imo.

3) I can't shut down each night due to the aforementioned automated backup schedule that I run. I am not one of those people that has like a year of uptime on my machine, but I definitely need it to be able to complete background tasks in sleep properly.

Love the ingenuity though!
 
I have had a lot of issues with Tahoe and flaky device enumeration on TB4/TB5 and USB buses. Audio devices (MiniFuse 2 & 4 in my case) disappear as DACs, while their MIDI over USB remains. Drives are getting randomly ejected.

MacBook Pros have had issues with HDMI EDID recognition and sync with certain monitors since Monterey, with no fix in sight. I look back with nostalgia at the quality levels macOS exhibited a few years ago. Catalina was rock solid for me. Monterey is pretty good. I try to like Tahoe, but it is crap.
 
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