===== MacBook Pro Ubuntu Audio =====

I installed Ubuntu 14.04.1 onto my MacBook Pro Core Duo 17" (MacBookPro1,2). For reference, you can determine your system identifier inside of Ubuntu with the following command:

''sudo dmidecode -s system-product-name''

After I installed Ubuntu, I noticed the sound didn't work. [[https://help.ubuntu.com/community/HdaIntelSoundHowto#Manually_Specify_Module_Parameters|This is actually a fairly common issue with the snd-hda-intel module and is described here]]. The page claims the information is out of date, but it's still helpful.

I'll repeat the steps here just in case. To solve the problem:

    * Determine the model of the sound card.
      * ''cat /proc/asound/card0/codec%%*%% | grep Codec''
      * In the case of my MacBook Pro, this command returned: "Codec: SigmaTel STAC9221 A1"
    * Find the "model" option to use for your model of the sound card.
      * ''zcat /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz | less''
      * Find your model and see the various available options for the models.
    * Decide which option you want to use, and stick it into ''/etc/modprobe.d/alsa-base.conf''
      * For example, on my MacBook Pro, I added the following line to the bottom of the file:
      * ''options snd-hda-intel model=macbook-pro-v1''
    * Reboot. The instructions at the linked page say you can run a command to reload alsa, but it didn't work for me until I rebooted.
    * If it still doesn't work, try another option until you find one that works.