24 May 2011

No sound out of MacBook speakers & red LED in Headphone jack [Fixed]

 
I have recently installed Ubuntu 11.04 on my Macbook and after a few days I am now getting very low sound from the speakers as well a red LED is glowing in the Headphone jack.
The sound is perfect if I connect my headphones but if I use the speakers there is no output. I have also installed Windows and Mac OSX(Triple Boot). The speakers work fine when I use either of them as well as there being no LED.

I have re-installed the Ubuntu but then also the problem is not solved.

[FIX] : Big thanks to Vonhinten I met him on irc #ubuntu who helped me fixing this issue :)

To get the sound i added : options snd-hda-intel model=mbp55 
to the file
/etc/modprobe.d/alsa-base.conf

To turn the Red LED off - try: amixer set IEC958 off 

This fix was also featured on OMG! Ubuntu : http://www.omgubuntu.co.uk/2011/05/how-to-fix-low-sound-on-a-macbook-with-ubuntu-11-04

5 comments:

Hey Adwait, Can you explain how you do that to a newbie.  I have the same problem.

So, my solution was to download GNOME ALSA Mixer from the software center and "uncheck" the mute button under "speaker".  Who'd-a-thunk?

how can i fix my mac book sound red light in headset 

To Kevin & Gio_18cute : Just follow the mentioned steps, please add a comment if you find any problem.

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