[NTLUG:Discuss] no sound in ubuntu 12.04

[Preston Hagar]

On Tue, May 8, 2012 at 12:25 PM, lonestar17 <lonestar17 at sbcglobal.net> wrote:
> Preston, I tried to post to the list, but nothing ever appeared there?
> Don't know why or if I did it wrong, obviously~!    Here's what I've done
> and results.
> I've d/l a NEW verison of 12.04 64bit and still have same problems?  The
> only options in sound properties box is s/lpdif, How do I remove that and
> use the analog computer speakers???
> I apologize for bothering you on your gmail, but I never saw this response
> on the list.
> Thanks / John
> Hello-Preston,
>   Thanks so much for your response...I didn't have pulse volume control
> installed...after I did install I had some of your suggestions available,
> but not all....
>   In the configuration tab, only available option is built in audio  (((
> "Analog Stereo Output". )) as you suggest.         I d on't see where to set
> the "High Definition Audio Controller" to "Off"   In that box there is the
> option to turn (( off )) , is that what you mean??
>   In output , there's no choice for port?  It is set to  dummy out put???
> So reflects in regular sound controls.
> Sound is being seen by the OS, the orange meter is moving at the bottom of
> the dialog box to the voice levels being processed????
> I'm just NOT hearing anything.
>  Thanks for suggestions/ help
> John
>

Not sure why it didn't post to the list.  I copied this, we will see
if it goes.

My solution probably will only work if your issue is that your video
card has an HDMI (not DVI) output that also outputs sound.  In my
case, my HDMI port was "stealing" the audio out from the on-board
sound.

The hard thing with Linux audio is there are 10 layers or so on it,
every program uses different stuff and it is really confusing (to me
at least).  If you don't see anything other than Analog stereo output
on the config tab, then it is likely your issue is something
different.

Just to verify, have you tried multiple different programs to see if
they are all affected (try maybe mplayer, xine, whatever you use to
play mp3s and maybe a youtube video or something)?  Also, in the Pulse
Volume Control interface, check the "Output Devices" tab and try
changing the port around and make sure they aren't muted (the speaker
with an X button isn't "pushed") and make sure the volume is turned
up.

If you can figure out a program that works, or one that just doesn't,
post that back and that might help narrow it down.  Also include the
specific chipset, that might help as wel.

Here is a general guide to Linux audio:

http://tuxradar.com/content/how-it-works-linux-audio-explained

It might help with the different programs/things you might need to
start looking at to see if any of them is muted or broken.

Preston