MacOS – MacBook not out-putting sound to Bluetooth devices

bluetoothmacos

I have a MacBook running macOS Sierra which has been successfully connected to my Logitech Bluetooth audio device. Recently it stopped working. Specifically, in sys-prefs/sound it won't select the device. In other words, the Bluetooth connection is made, but it won't set as a sound device. I checked this with other Bluetooth sound devices from other manufacturers, so I believe it's a general Bluetooth audio issue.

Does anybody have any insight into this?

Best Answer

Your question doesn't specify what you've tried to resolve this. Have you tried resetting things (or unpairing) and pairing again?

On the MacBook go to System Preferences > Bluetooth and right-click on the Logitech device and select Remove
On the Logitech device, follow the instructions on how to reset it
Now go through the process of pairing them again

Related Solutions

Actual stereo sound with bluetooth headset

Are you still having this issue? I found this set of changes fixes the output, though I'm still having tinny input quality over bluetooth:

defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Max (editable)" 120
defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Min (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Apple Initial Bitpool (editable)" 120
defaults write com.apple.BluetoothAudioAgent "Apple Initial Bitpool Min (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool" 100
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool Max" 120
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool Min" 80
defaults write com.apple.BluetoothAudioAgent "Stream - Flush Ring on Packet Drop (editable)" 30
defaults write com.apple.BluetoothAudioAgent "Stream - Max Outstanding Packets (editable)" 15
defaults write com.apple.BluetoothAudioAgent "Stream Resume Delay" 0.75

MacOS – Why do the Macbook Pro’s WiFi speeds drop significantly when paired with Bluetooth devices

I found this answer here: https://discussions.apple.com/thread/6803542, a guy named 'Todd Berliner' had similar issues. Credits for him if this fixes your issue

Todd has similar problems and worked with an Apple senior supervisor for several weeks and came to the following fix:

Turn off bluetooth.
Disconnect all peripherals from your computer.
Open System Preferences. In the "Energy Saver" preference, de-select "Wake for network access" (no check, and leave it that way).
Open the finder. Select the "Go" menu. Select "computer." Select "Macintosh HD." Go the the "Library" folder. Go to the "Preferences" folder. Find the preference file "com.apple.bluetooth.plist."
Rename "com.apple.bluetooth.plist" as "com.apple.bluetooth.plist.old" (i.e. add ".old"). Eventually, if this solution works for you, you can delete this "old" preference file.
Restart your computer (this will create a new "com.apple.bluetooth.plist" preference file).
Turn bluetooth back on.

Apparently, the problem is a bug caused by a bad interaction between the bluetooth preference file and wifi.

Best Answer

Related Solutions

Actual stereo sound with bluetooth headset

MacOS – Why do the Macbook Pro’s WiFi speeds drop significantly when paired with Bluetooth devices

Related Question