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0xbb/macbook-mute.sh

Last active April 6, 2024 08:26
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Turn off Macbook startup sound - Linux
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macbook-mute.sh
#!/bin/bash
printf "\x07\x00\x00\x00\x00" > /sys/firmware/efi/efivars/SystemAudioVolume-7c436110-ab2a-4bbb-a880-fe41995c9f82
@leifliddy
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I have a MacBook9,1 and a MacBookPro14,1 -- and on both of these models I needed to set the hex value to 80
Setting it to 00 did not work. I'm surprised no one has posted anything on this topic before.....

 printf "\x07\x00\x00\x00\x80" > SystemAudioVolume-7c436110-ab2a-4bbb-a880-fe41995c9f82
 # probably wasn't needed, but changed the value of SystemAudioVolumeDB to match SystemAudioVolume
 printf "\x07\x00\x00\x00\x80" > SystemAudioVolumeDB-7c436110-ab2a-4bbb-a880-fe41995c9f82

@ammar-faifi
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ammar-faifi commented Jan 30, 2024 •
edited

it only worked when i use yours @leifliddy 🫡,thanks

on MacBookPro13,1
i didn't need to overwrite the SystemAudioVolumeDB-* one

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