Ask Different Asked by Bodhidarma on February 3, 2021
I ran into an issue where my volume buttons on my mac weren’t able to adjust the volume of my computer. I sought a solution and someone suggested using sudo killall coreaudiod
. Now I have no volume on my computer at all. How do I fix this?
sudo killall coreaudiod
should work to kill your audio drivers. It should reload itself within a fraction of a second.
(verified on my mbp running 10.14 but used this on a couple of previous versions)
Answered by Arthur D on February 3, 2021
You can also use the command:
sudo launchctl kill SIGTERM system/com.apple.audio.coreaudiod
Answered by Ken Aspeslagh on February 3, 2021
sudo launchctl stop com.apple.audio.coreaudiod && sudo launchctl start com.apple.audio.coreaudiod
Martin Strouhal's answer doesn't work for OS X/macOS ≥ 10.12.4 due to removal of com.apple.audio.coreaudiod
from system integrity protection's RemovableServices
whitelist in /System/Library/Sandbox/com.apple.xpc.launchd.rootless.plist
[1].
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist: _ Operation not permitted while System Integrity Protection is engaged
So instead of removing (unloading) the service, we instead just restart it.
Also, the latter command (sudo launchctl start com.apple.audio.coreaudiod
) worked to restart the service after I had killed coreaudiod
using killall coreaudiod
.
Answered by ijoseph on February 3, 2021
You need to reload coreaudiod
instead of killing it. This one-liner will fix broken sound without restarting your mac
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist && sudo launchctl load /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist
Answered by Martin Strouhal on February 3, 2021
You've simply killed Core Audio, which will restart itself if you restart your computer. Try logging out/in, and if that doesn't work restart your computer.
Answered by Undo on February 3, 2021
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