Re: Plugged in subwoofer and lost all sound

On Mon, Feb 20, 2012 at 14:30, Ric Moore <wayward4now@xxxxxxxxx> wrote:
On 02/20/2012 02:09 PM, Wade Smart wrote:

A friend gave me his older Altec Lancing subwoofer
after getting a new one. I plugged it into my sub port
but had no sound. I went to Sound Preferences and
under the hardware tab, highlighted my Internal
Audio card and in the Settings for the selected device
below changed from Analog Stereo Duplex to
Analog Surround 5.1 Output + Analog Stereo Input.
Nothing happened. After trying several of the choices
I lost sound all together.

I rebooted and noticed I heard the ubuntu start up
sound. I went back into the Sound Preferences and
under Sound Effects under Sound Theme I changed
from Ubuntu to No sound and back, I can hear the
sounds there. But when you try to play youtube or
or a cd or anything else with sound - there is no
sound at all.

Do alsmixer first. Then the pulse audio pavucontrol second. It should be
detected. Is that woofer self powered? Or is it just a speaker in an
enclosure? If the rest of your speakers are self powered (built in amp) then
the woofer would probably have to be as well ...but I'm guessing there. My
computer with the MSI motherboard won't auto select it's builtin audio outs
to pre-amp mode. It's trying to power my speakers like they have no amps and
buzzes like crazy. POS. No problems with the same surround sound set up with
my ASUS board. Ric

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It is self powered.
I unplugged the sub, restarted my computer, chose
Analog Surround 4.1 Output + Analog Stereo Input
and my normal speakers worked again.
However, the sub is not working.

I have a Shuttle pc and some older posts in various
forums say they got theirs running but... it didnt say

In out Sound preferences Output tab for Internal Sound
the settings show a Subwoofer and its set to max through
there is no sound at all.

I installed alsamixer. It doesnt show anything for the sub.
I installed pavucontrol and it crashes almost immediately
with "Connection failed: Connection Terminated". It does
show the sub and its set to 94% default with the other

Oh, Im on Ubuntu 10.04.

Registered Linux User: #480675
Registered Linux Machine: #408606
Linux since June 2005

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