[GRLUG] No sound

[Michael Mol]

On Tue, May 31, 2011 at 2:59 AM, Bob Kline <bob.kline at gmail.com> wrote:
> OK, I've managed to hose the
> audio on my Kubuntu 11.04 setup.
> KMix says the motherboard sound
> hardware - HDA ATISB ( ALC 1200
> Analog) does not work.
> But I don't believe this means it is
> dead.  It seems to be coincident with
> my installing, and then uninstalling
> "jack" and "audacity."  Next thing I
> know I the hardware does not work,
> and I'm using some kind of "default"
> audio device - whatever that means.

It's probable that installing Jack added some modules to your
/etc/pulse/system.pa or /etc/pulse/default.pa files, and the uninstall
sequence for jack didn't properly remove them.

Go through /etc/pulse/system.pa and /etc/pulse/default.pa and comment
out any lines particular to jack. (It may be desirable to do a
reinstall of PulseAudio, to get the package default configuration
back; the default relies on autoconfiguration) Then you'll want to get
the PulseAudio daemon restarted.

Restarting the PulseAudio daemon isn't particularly easy. PulseAudio
runs per-user daemons by default, for security reasons, and the daemon
is started by the first app to load the PulseAudio library. Running
KDE, that's going to happen as you log in.  You'll need to completely
log out, get to a console tty (either via ssh or by Ctrl-Alt-F1 (after
which you'll want to remember that Ctrl-Alt-F7 or Ctrl-Alt-F8 will get
you back to the GUI)), log in, and make the pulse daemon isn't
running. (I think it's named pulsed).

The easier way to restart the PulseAudio daemon is to restart the computer.

> I ran lshw, and under *-multimedia
> it shows a description of the video
> device.
> product: SBx00 Azalia ( Intel HDA),
> which is consistent with the KMix
> output mentioned above.
> configuration: driver=HDA Intel latency=64
> Does that mean the driver is that, or is
> that indicating what should be available?

That means that the SBx00 Azalia uses the Intel HDA driver. It doesn't
mean the device is or is not working; depending on how a device fails,
it may still show up on the PCI bus, but not actually accomplish
anything.

> lspci also shows the device.
>
> Can someone suggest some
> things?  e.g., what to reinstall, like a
> driver for the hardware, or suggest
> what else might have disappeared
> when I removed jack and audacity?



-- 
:wq

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.