USB speakers keep waking Mac

[steve217]

My USB speakers - Klipsch R-51PM’s - are apparently the cause of my M1 Mac Mini failing to sleep.

I fingered the speakers as the waking villians by removing every device from my machine one by one and putting the Mac to sleep. I can still use the speakers via a stereo cable, but I would prefer to connect via USB.

Is there a way to find/disable a USB-Input device in MacOS as described in this Windows-centric post?

R-15PM prevent PC's display to go to sleep

I have a pair of R-15PM connected to my Windows 10 via USB, it's preventing my Windows's to let display to go to sleep. If I turn the speaker off, my display will go into sleep mode. Here's what I've tried so far from googling for hours: I've ran "powercfg -requests" and there's nothing there I'v...

community.klipsch.com

 

[swrobel]

I had all sorts of problems with my Klipsch speakers when they were connected over USB. I just broke down and went to an analog cable and all has been well.

 

[steve217]

I had all sorts of problems with my Klipsch speakers when they were connected over USB. I just broke down and went to an analog cable and all has been well.

That's been my recourse too, an analog cable.

Pity. Not that I have the ears for lossless, but I do like the idea of that clean, high bandwidth connection for audio.

 

[swrobel]

I agree, it's completely silly to buy USB speakers and then have them be unusable over USB, but at least there's a fallback. In fact, I forgot about that whole ordeal until I came across your post. It sounds the same in the end, at least to my ears

 

[steve217]

One interesting tidbit to this USB connection/sleep issue is that the speakers worked fine with a 2018 Mac Mini.

*Sigh* Another bugfix to hope for in the next macOS release.

 

[steve217]

@swrobel - Long time since this thread was started, but I finally found a cure for the speakers waking the Mac by turning off the power saving features on the speakers.


To disable power saving on the Klipsch:

1. Ensure the speakers are set to a non-Bluetooth source (phono, analog, digital, or USB).
2. Press and hold the Volume/Source knob on the back of the main speaker.
3. While holding the knob, press the Subwoofer volume (up or down) button on the remote once, then release the Volume/Source knob. The front LED will start blinking.
4. Press the Volume/Source knob repeatedly until the front LED turns purple.

5. Once the LED is purple, press the Subwoofer Reset button once to confirm the setting. The LED should stop flashing and return to the original source indicator.

Although the analog cable prevented the speakers from waking the Mac, the speakers themselves would go into sleep mode even while I was using the Mac ... and that got old.

 

[MacGizmo]

Bluetooth and USB devices are notoriously responsible for sleep issues on the Mac. One reason I wish the Apple Studio Display had an On/Off button.