Results 1 to 8 of 8

Thread: No sound on powerpc, soundcard not detected

  1. #1
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    447
    Distro
    Lubuntu 14.04 Trusty Tahr

    No sound on powerpc, soundcard not detected

    Hi,

    I am running Lubuntu 13.10 on, among other machines, a Mac iBook G4.

    I hear the signature sound on turning the machine on, but there is no sound when playing audio or video.

    Code:
    robert@lubuntu-ibookg4:~$  aplay -l
    aplay: device_list:268: no soundcards found...
    I have read the advice here, and everything appears in order: https://wiki.ubuntu.com/PowerPCFAQ#W...ve_no_sound.3F

    My sound does not appear to be muted*.

    Modules:

    snd-powermac is loaded.

    The following are blacklisted:
    snd-aoa
    snd-aoa-fabric-layout
    snd-aoa-soundbus
    snd-aoa-i2sbus
    snd-aoa-codec-tas

    (* The above link gives the advice: "You need to check more than just your master volume,
    for example the volume of the PCM channel maybe set to zero". However, I do not know how to
    check the "PCM channel". I have installed gnome-alsamixer, but it does not appear to open properly i.e.
    the GUI opens but without any controls, just a blank window).

    Any help gratefully received.

    Many thanks.

  2. #2
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    447
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: No sound on powerpc, soundcard not detected

    I found this but have no idea what, exactly, to do with the patch:

    http://lists.debian.org/debian-power.../msg00031.html

  3. #3
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    447
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: No sound on powerpc, soundcard not detected

    I now realise that this patch wouldn't help, as it is for an iBook requiring the snd-aoa module, whereas mine apparently should require the snd-powermac module.

    Still looking for a solution...

    Quote Originally Posted by rdh61 View Post
    I found this but have no idea what, exactly, to do with the patch:

    http://lists.debian.org/debian-power.../msg00031.html

  4. #4
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    447
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: No sound on powerpc, soundcard not detected

    For anybody who's interested, the problem was that I had failed to consider that I might have both the wrong sound module loaded AND one of the volume controls muted. Thus when I tried with the other sound modules I did not at the same time re-try with alsamixer. (Reading above, see that alsamixer would not show any controls with snd-powermac loaded).

    The solution was to ensure that these modules were loaded:

    snd-aoa
    snd-aoa-fabric-layout
    snd-aoa-soundbus
    snd-aoa-i2sbus
    snd-aoa-codec-tas

    and this one blacklisted:

    snd-powermac

    i.e. the opposite of the configuration installed by default.

    Details here: https://wiki.ubuntu.com/PowerPCFAQ#W...ve_no_sound.3F

    Then, from a terminal I opened alsamixer, which now displayed normally. I toggled "PCM" to unmuted by selecting it and typing "m", then crucially I did the same with "Headphone". Without this last step there was still no sound, although what this has to do with it I don't know as I don't have any headphones attached.

    Anyway, that worked.
    Last edited by rdh61; January 4th, 2014 at 06:20 PM.

  5. #5
    Join Date
    Nov 2014
    Beans
    1

    Re: No sound on powerpc, soundcard not detected

    THANK YOU!!! I can confirm the above worked for me on:
    Mac mini G4 (PowerMac10,1)
    Ubuntu 14.04.1 LTS
    AppleOnbdAudio

  6. #6
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    447
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: No sound on powerpc, soundcard not detected

    Update: Since posting the above 16 months ago, I recently did a fresh install, and came up against the same problem again. But I had difficulty following my own instructions above, which I realise need clarification. This then is the solution:

    First see here: https://wiki.ubuntu.com/PowerPCFAQ#W...ve_no_sound.3F

    BUT, contrary to what is suggested there:

    The solution is to ensure that these modules are loaded:

    snd-aoa
    snd-aoa-fabric-layout
    snd-aoa-soundbus
    snd-aoa-i2sbus
    snd-aoa-codec-tas

    and this one blacklisted:

    snd-powermac

    How?

    1. in /etc/modprobe.d/blacklist.local.conf comment out the blacklisted modules that are in fact required to be loaded:

    Code:
    blacklist snd-aoa
    blacklist snd-aoa-fabric-layout
    blacklist snd-aoa-soundbus
    blacklist snd-aoa-i2sbus
    blacklist snd-aoa-codec-tas

    and uncomment the following:

    Code:
    # blacklist snd-powermac
    2. In /etc/modules add:

    Code:
    snd-aoa
    snd-aoa-fabric-layout
    snd-aoa-soundbus
    snd-aoa-i2sbus
    snd-aoa-codec-tas
    Then, from a terminal open alsamixer, which will now display normally. Toggle "PCM" to unmuted by selecting it and typing "m". Then, I don't know why but to get sound but I had to do the same with "Headphone", even though I don't have any headphones attached.

  7. #7
    Join Date
    Feb 2016
    Beans
    1

    Re: No sound on powerpc, soundcard not detected

    Thanks for this post, here is an update for getting ubuntu 15.10 up and running on a mac mini model a1103(PPC)

    Download the ubuntu server 15.10 iso
    Install the vanila server, then run apt-get install lubuntu-desktop(run's ok, web browsing a bit weak)
    reboot

    There were two immediate issues:
    - screen would freeze then flick on and off every couple of seconds until you reboot. This would only happen when I made a program full screen.
    - No Sound

    To fix the video, I followed https://wiki.ubuntu.com/PowerPCKnownIssues and changed yaboot parameter radeon.agpmode=-1

    To Fix the sound I followed rdh61's fix, but replaced:
    snd-aoa-codec-tas
    WITH
    snd-aoa-codec-toonie

    You will need to adjust this codec if you have a different model mac, see: https://wiki.debian.org/PowerPC/SoundCards

    I will put a request in with the "ppc known issues" wiki page to have it updated...
    Last edited by mmw-canada; February 5th, 2016 at 11:01 PM.

  8. #8
    Join Date
    Aug 2014
    Location
    Germany
    Beans
    33
    Distro
    Xubuntu 15.10 Wily Werewolf

    Re: No sound on powerpc, soundcard not detected

    Quote Originally Posted by mmw-canada View Post
    You will need to adjust this codec if you have a different model mac, see: https://wiki.debian.org/PowerPC/SoundCards
    How would I find from this list the needed "snd-aoa-codec-XYZ" for my machine?
    I tried your hints concerning "etc/modules" but neither the codec "snd-aoa-codec-toonie" nor "snd-aoa-codec-tas" works for me.

    So I can't get sound to work with Ubuntu 15.10 on my PPC iBook G4. :-(

    Some kernel log file lists the exact machine ID as: G4 iBook2 (PowerBook6,5)
    According to your linked debian list my audio chipset would be "Snapper", and via some other information I found the audio ID being hex 26 aka decimal 38.

    In the other thread there's a patch which is said to work also for this audio hardware (PowerBook6,5) with Ubuntu 14 and Kernel 3.x , but we've got Ubuntu 15.10 and Kernel 4.x .

    Any help much appreciated.
    Last edited by fidelis2; February 18th, 2016 at 05:24 PM.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •