[mdlug] Lost audio on Ubuntu 12.04

[R Kannan]

Never mind I found the problem.

It looks like the I had switched the top right button on 'Pulse Audio
Volume control' 'Playback' tab showing 'Applications' from 'Built-In
Audio Analog Stereo' to 'HDA NVidia Digital Stereo (HDMI)' 
inadvertently.  Apparently all audio was being directed to HDMI.


On 01/26/2016 07:27 PM, R Kannan wrote:
> Hello,
>
> Today I seem to have lost audio on my desktop for some applications. The
> box has Intel integrated built-in audio.
>
> No sound on attached speakers, wired earphones or wireless headphones
> through pulse audio. This is probably not a hardware failure because the
> sound seems to be on when I log into Windows.
>
> There seems to be some audio signal because I can see the signal
> indicator in pulse audio control panel shows some signals when i play a
> video.
>
> I tried rebooting with no success. It is as if the speakers were muted.
>
> Next I tried testing the speakers with audio streams with
>
> speaker-test -Dplug:front -c2 -l5 -twav
>
> and it did work. But I cannot hear the audio when I plan a video either
> in a browser or in MythTV or play an audio file in VLC media player.
>
> Any ideas?
>
> Thanks
>