not-a-bug------No sound output on Ubuntu 6.06

[david l goodrich]

Never mind, this is not an Ubuntu issue. It was a hardware misconfiguration.

http://cialug.org/pipermail/cialug/2006-December/006775.html

I'm running a computer with a Soyo K7VME motherboard. The onboard sound is handled by a VIA V82xx device.

According to everything I've seen, the system is set up correctly.

I followed the instructions at RestrictedFormats[1] to allow my fresh install of 6.06 to play MP3s, but this didn't work. Programs can play mp3s now, but I'm not hearing any output. I know the speakers work, I just tested them by plugging them into my iPod. Audio-out worked Back In The Day when this computer was running Windows XP, so I don't think the hardware is damaged in any way.

I set out to follow the Comprehensive Sound Problem Solutions Guide[2]. It hasn't really helped.

1. Go to a shell and type: aplay -l

dlg@pedro:~$ aplay -l
card 0: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
  Subdevices: 4/4
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
card 0: V8235 [VIA 8235], device 1: VIA 8235 [VIA 8235]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
dlg@pedro:~$

2. Type this into the shell: lspci -v
dlg@pedro:~$ lspci -v | grep -A5 Audio
0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
        Subsystem: Unknown device a723:10fd
        Flags: medium devsel, IRQ 185
        I/O ports at e000 [size=256]
        Capabilities: <available only to root>

dlg@pedro:~$

4. Now go back to the shell and type sudo modprobe snd-...
dlg@pedro:~$ lsmod | grep ^snd_via
snd_via82xx 28824 1
dlg@pedro:~$

the module was already loaded automatically at boot.

I checked alsamixer, none of the outputs are muted.

I hear no output playing an mp3 in Movie Player, Rhythmbox, gxine or mpg123.

Clicking the "Test" button in gstreamer-properties for each of the audio output options produces no output.

and so, even though this is a fresh install, I re-install the audio

dlg@pedro:~$ sudo apt-get --purge remove linux-sound-base alsa-base alsa-utils
...
dlg@pedro:~$ sudo apt-get install linux-sound-base alsa-base alsa-utils
...
dlg@pedro:~$ sudo apt-get install gdm ubuntu-desktop

and reboot.

and still no sound.

someone at CIALUG suggests[3] blacklisting the snd-via82xx-modem module.

So I made my /etc/modprobe.d/blacklist-modem look like this:

dlg@pedro:~$ grep -v ^# /etc/modprobe.d/blacklist-modem
blacklist snd-via82xx-modem
dlg@pedro:~$

And rebooted. No effect.

This was originally submitted at the Ubuntu forums[4], but recieved little (as of this writing, no) attention. Matthew Nuzum suggested[5] I file this as a bug here. Thank you for your help.

1. https://help.ubuntu.com/community/RestrictedFormats#head-ca36a48df46a615e785bcf4ad33a94db3942a2da
2. http://ubuntuforums.org/showthread.php?t=205449%3Cbr%20/%3E
3. http://cialug.org/pipermail/cialug/2006-December/006768.html
4. http://ubuntuforums.org/showthread.php?t=317213
5. http://cialug.org/pipermail/cialug/2006-December/006767.html

[William Grant (wgrant)]

Hardware misconfiguration, as reported by the reporter.