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Thread: Thinkpad T60 - no sound

  1. #1
    Join Date
    Jan 2006
    Beans
    12

    Unhappy Thinkpad T60 - no sound

    I have reinstalled my trusty T60 with Ubuntu Precise Pangolin 12.04. Ti was running 10.04 before. Everything worked fine, except sound. There is no sound.

    If I click on the sound icon I see that the volume slider is greyed out, you ca not change the volume. The sound control panel shows an empty list, so it looks like Ubuntu does no longer know the sound hardware.

    I have worked my way through the sound troubleshooting pages, but everything looks right.

    Here the Sound Applet:


    But running Alsamixer everything looks good:
    Code:
    ┌───────────────────────────── AlsaMixer v1.0.25 ─────────────────────────────┐
    │ Card: HDA Intel                                     F1:  Help               │
    │ Chip: Analog Devices AD1981                         F2:  System information │
    │ View: F3:[Playback] F4: Capture  F5: All            F6:  Select sound card  │
    │ Item: PCM [dB gain: 0.00, 0.00]                     Esc: Exit               │
    │                                                                             │
    │     ┌──┐     ┌──┐     ┌──┐     ┌──┐     ┌──┐                                │
    │     │▒▒│     │  │     │  │     │  │     │▒▒│                                │
    │     │▒▒│     │  │     │  │     │  │     │▒▒│                                │
    │     │▒▒│     │  │     │▒▒│     │  │     │▒▒│                                >
    │     │▒▒│     │  │     │▒▒│     │  │     │▒▒│                                >
    │     │▒▒│     │  │     │▒▒│     │  │     │▒▒│                                >
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                >
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                >
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                >
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                >
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                │
    │     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│                                │
    │     ├──┤     ├──┤     ├──┤     ├──┤     └──┘     ┌──┐     ┌──┐     PCM      │
    │     │OO│     │OO│     │MM│     │MM│              │OO│     │OO│              │
    │     └──┘     └──┘     └──┘     └──┘              └──┘     └──┘              │
    │   100<>100  56<>56   81<>81   56<>56  100<>100                              │
    │    Master <  PCM   >   CD      Mic    Mic Boos  S/PDIF  S/PDIF D S/PDIF P   │
    │                                                                             │
    └─────────────────────────────────────────────────────────────────────────────┘
    So far so good. After some tinkering I have found a workaround, unfortunately it is not always practicable: If I connect my Ozone Maudio midi keyboard/soundcard, just temporarily, then my Thinkpad soundcard appears and works. Somehow this triggers the appearance of the soundcard.
    Last edited by markus_b; November 27th, 2012 at 11:41 PM.

  2. #2
    Join Date
    Jun 2007
    Beans
    12,274

    Re: Thinkpad T60 - no sound

    That's.. interesting. You should report it as a bug against pulseaudio. It would be helpful if you would log what happens when you plug in your keyboard: https://wiki.ubuntu.com/PulseAudio/Log
    If you don't want to create a Launchpad account, I will file the bug for you.

  3. #3
    Join Date
    Jan 2006
    Beans
    12

    Re: Thinkpad T60 - no sound

    You are right, the culprit seems to be pulseaudio. I dies.
    Code:
    markus@T60:~$ pgrep pulseaudio
    markus@T60:~$ echo autospawn = no >> ~/.pulse/client.conf
    markus@T60:~$ LANG=C pulseaudio -vvvv --log-time=1 > ~/pulseverbose.log 2>&1
    Killed
    markus@T60:~$
    Here the pulseaudio log (pastebin):pulseverbose.log

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