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Thread: Lost sound out of the blue

  1. #1

    Lost sound out of the blue

    I've been running 8.10 for a few days. No problems with audio. Then, today I logged in and my sound doesn't work at all. I tested the speakers on a different PC and they work fine. I did the System > Administration > Hardware testing and the audio test failed. Here is a snippet of my lspci -v

    00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
    Subsystem: Hewlett-Packard Company Device 2a3e
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
    Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

    I followed the Comprehensive Sound Problems post but it wants me to recompile alsa. That seems a bit drastic since I didn't make any changes to begin with and it worked originally.

    In troubleshooting I've used synaptic to remove and reinstall "alsa-base" and I've run apt-get update a couple times.

    Anybody help?

  2. #2
    Join Date
    Dec 2005
    Beans
    19

    Re: Lost sound out of the blue

    I just upgraded my 8.10 install yesterday since a few weeks and now my sound stopped working too! I am not running pulseaudio. I verified the mixer level/mute settings and speakers as well. I am using an Audigy2 ZS. lsmod shows the modules as loaded and aplay -l lists the PCMs...

    I just returned from poking around some more, and I found that I had to toggle the "Audigy Analog/Digital Output Jack" switch in the mixer to make it work. Apparantly, it defaults to digital in the new version.

  3. #3

    Re: Lost sound out of the blue

    My sound came back, again out of the blue, after several reboots. Note - not one reboot, several reboots.

    *sigh*

    oh well, at least it's working

  4. #4

    Re: Lost sound out of the blue

    This thread is solved, but for some reason the option to mark it as such is not available in the "thread tools" menu.

  5. #5
    Join Date
    Jul 2006
    Beans
    11

    Re: Lost sound out of the blue

    Quote Originally Posted by ddennedy View Post
    I just upgraded my 8.10 install yesterday since a few weeks and now my sound stopped working too! I am not running pulseaudio. I verified the mixer level/mute settings and speakers as well. I am using an Audigy2 ZS. lsmod shows the modules as loaded and aplay -l lists the PCMs...

    I just returned from poking around some more, and I found that I had to toggle the "Audigy Analog/Digital Output Jack" switch in the mixer to make it work. Apparantly, it defaults to digital in the new version.
    Thanks for that! I've been wondering why the 28.11 upgrade lost all sound since the weekend!

    I wonder whose bright idea it was to invert the meaning of a switch in a simple bug fix release?

  6. #6
    Join Date
    May 2008
    Location
    Leeds, UK
    Beans
    128
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Lost sound out of the blue

    Thanks guys, the "Audigy Analog/Digital Output Jack" was buggering it up for me too, but switching it has fixed it.

  7. #7

    Re: Lost sound out of the blue

    My sound stopped working again, this time after a gstreamer install. I would un-install it, but it was installed through the browser and I'm not sure which of the many gstreamer packages listed in synaptic is the one that broke my stuff.

    Maybe I'll try that analog/digital switch you guys are talking about? I don't see it in alsamixer, where is it?

  8. #8

    Re: Lost sound out of the blue

    Since my last post the sound started working again (after a reboot). Now I have a better problem description:

    Every three or four days my sound completely stops working until I reboot.

    any ideas?

  9. #9
    Join Date
    Feb 2009
    Beans
    49

    Re: Lost sound out of the blue

    As previous posts have mentioned, I lost my analog sound output after an upgrade a few weeks ago. I'm new to ubuntu, so I don't know how to restore to a pre-upgrade time. So, here are my problems since that upgrade:

    1) I can't find the analog/digital switch. I need help with this. I don't have a speaker icon on the bottom toolbar since the upgrade.
    2) I lost the little green guy in the upper right corner to shutdown with. I now have to ctrl-alt-delete to shutdown. This isn't a big issue, but it is something that changed.
    Any help would be appreciated.
    Al

  10. #10

    Re: Lost sound out of the blue

    Quote Originally Posted by homeuser1 View Post
    As previous posts have mentioned, I lost my analog sound output after an upgrade a few weeks ago. I'm new to ubuntu, so I don't know how to restore to a pre-upgrade time. So, here are my problems since that upgrade:

    1) I can't find the analog/digital switch. I need help with this. I don't have a speaker icon on the bottom toolbar since the upgrade.
    2) I lost the little green guy in the upper right corner to shutdown with. I now have to ctrl-alt-delete to shutdown. This isn't a big issue, but it is something that changed.
    Any help would be appreciated.
    Al
    1) I don't know the answer to this myself. In fact, my audio works when I boot up but only for a while (few hours? maybe a day?) then it doesn't come back until a reboot.

    2) right click your panel and choose "add to pannel" - it will give you a list of stuff you can add, look through the list to find what you're missing.

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