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Thread: Sound on a Macbook Pro 5,5?

  1. #211
    Join Date
    Jan 2008
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    Netherlands
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    2,930
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Sound on a Macbook Pro 5,5?

    did you also unmute with alsa-mixer ?
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  2. #212
    Join Date
    Jan 2010
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    3

    Re: Sound on a Macbook Pro 5,5?

    Hi guys, just to let you know: I'm using Ubuntu Karmic on my macbook 5-5 with the following kernel:

    Code:
    szymi@ski:~$ uname -r
    2.6.31-17-generic
    and I have sound. The kernel I believe is "held" in this package:

    Code:
    linux-image-2.6.31-17-generic-pae
    After installing it, you'll have to edit /boot/grub/grub.cfg, find the following line:

    set default="0"
    and adjust it so that grub boots to the right kernel.

    If you decide to downgrade, after booting into you new-old kernel remember to reinstall video drivers if you are using proprietary ones to get them to work. Also, you will have to create and run as root the following script (I found it somewhere around here: https://help.ubuntu.com/community/MacBookPro5-5/Karmic, can't remember where exactly)

    Code:
    #!/bin/bash
    sudo rm -rf /lib/modules/`uname -r`/kernel/sound
    sudo aptitude reinstall linux-headers-`uname -r` linux-image-`uname -r`
    rm alsa-driver-snapshot.tar.gz
    wget ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
    tar xf alsa-driver-snapshot.tar.gz
    cd alsa-driver
    sudo ./configure --enable-dynamic-minors --without-oss --with-cards="hda-intel"
    sudo make
    sudo make install
    The above script will install the right alsa driver for your system, and also it will remind you about unmuting sound. Easiest way to do this is to use gnome-alsamixer.

    By the way, just a small hint for some of you: if you have something working and it stops working after an update, try booting into the kernel version you were using before update. Nine times out of ten it will magically get your Linux to work again. Generally, if you are inexperienced, always think twice before upgrading kernel if you don't have a valid reason to do so.

    Good luck.

    ---
    szymi's blog
    Last edited by szymi; January 6th, 2010 at 05:36 PM.

  3. #213
    Join Date
    May 2008
    Beans
    151

    Re: Sound on a Macbook Pro 5,5?

    Quote Originally Posted by linuxopjemac View Post
    did you also unmute with alsa-mixer ?
    Ah, I thought I had. After double checking, I realized my "front speaker" channel was still muted. Unmuting that fixed it. Sorry for the false alarm.

  4. #214
    Join Date
    May 2008
    Beans
    151

    Re: Sound on a Macbook Pro 5,5?

    A couple more oddities I've noticed after upgrading to the 2.6.32 kernel:

    1. My camera no longer works. Opening Cheese reports "No camera found!"
    2. When I open my lid and Ubuntu comes out of suspension, the login prompt appears briefly, and then Ubuntu goes back into suspension. I have to manually press the power button and wait several minutes to bring it out of suspension.

    Does anyone else have these problems?

    Chris

  5. #215
    Join Date
    Apr 2009
    Beans
    55

    Re: Sound on a Macbook Pro 5,5?

    nope



    well, cant speak for everyone, but I certainly don't!

  6. #216
    Join Date
    Apr 2007
    Location
    Oz
    Beans
    152
    Distro
    Ubuntu 13.10 Saucy Salamander

    Re: Sound on a Macbook Pro 5,5?

    One of todays security updates is linux-libc-dev (Linux Kernel headers for development). If I install this is it likely to be an issue for the sound on macbook pro 5,5? Sorry for the noob question but I've gained so much grey hair from this issue and now that I've finally got an installation that works almost flawlessly, the last thing I want to do is screw it up again.

  7. #217
    Join Date
    Jan 2009
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    310
    Distro
    Ubuntu Development Release

    Re: Sound on a Macbook Pro 5,5?

    I would be very surprised if this affected sound. All security updates should be applied ASAP - would you rather have broken sound or your entire machine compromised?

  8. #218
    Join Date
    Apr 2007
    Location
    Oz
    Beans
    152
    Distro
    Ubuntu 13.10 Saucy Salamander

    Re: Sound on a Macbook Pro 5,5?

    Quote Originally Posted by alexmurray View Post
    would you rather have broken sound or your entire machine compromised?
    Same thing really, since I use my computer for work, which revolves around....sound and music

    As far as I understand, the sound problem was/is related to the kernel.

    Last time I installed a kernel update it blew my sound and nothing would get it back except a fresh install. I'd like to avoid that.

  9. #219
    Join Date
    Feb 2010
    Beans
    1

    Re: Sound on a Macbook Pro 5,5?

    I'm very new to Ubuntu, and even more new to Linux at that. As the thread suggests I am also having a problem with my sound. I have literally read through all 22 pages and did what was written there. I still have no sound. Is there any help for me?
    Last edited by norbster; February 6th, 2010 at 12:03 AM.

  10. #220
    Join Date
    Oct 2007
    Beans
    48
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Sound on a Macbook Pro 5,5?

    I have a Macbook Pro 5,5
    2.53ghz Intel Core 2 duo
    13'3 inch display model
    Nvidia 9400M 256MB DDR3 shared
    4GB DDR3 RAM
    Ubuntu 10.10 Maverick Meerkat.

    I can confirm that on this model the measures in post no.98 do work, I have full sound support after taking these steps. However, I had to change the kernel numbers to account for the updated kernel in 10.10.

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