@hwtech Does it matter if the laptop is drawing power from the hub? This problem started for me without any change in my peripherals and seemed related to the last Sonoma update.
Running an M1 MBP driving 5K and 4K ext monitors via two hubs plus a couple of external powered HDDs and a Wacom pad. The MBP is connected first to a powered hub, which is then daisy-chained to an unpowered hub. I also tried separately powering the laptop via the MagSafe cable without benefit.
Does an unpowered hub draw power from a powered hub between it and the laptop? Or directly from the laptop?
The warning pops up frequently then goes away for a tens of minutes and isn’t related to sleep/wake of the laptop.
This sounds like a bug but I guess I should do a NVRAM and SMC reset just to be sure after removing all peripherals. Then add them back one-by-one.