Computer: Hp Elitebook 8460p (Laptop)
I have removed and re-installed pulse audio, as well as "force-reload" to no avail, Not sure what else to try.
I have also checked settings in "alsamixer" nothing there seems to fix either.
Sound settings show: "Speakers - Built in Audio" and switches to "Headphones - Built in Audio" when headphones are inserted into the 3.5mm jack. Neither the Built-ins nor headphones play sound.
Also, prior to re-installing pulse audio the "Test Sound" section of sound settings appeared to be playing sound, just couldn't hear it. Now, after re-installing pulse audio the test buttons do nothing.
Before the sound quit - I had recently installed and have been using kdenlive to edit video. I first noticed that sound was missing when watching one of these videos via VLC.
I thank anyone who can provide insight. Please let me know if I can provide anymore useful info.
9 JUL 2013 Updates:
After further diagnostics
I'm inclined to believe that this may be a hardware issue. I'll explain.
With a live CD I tested sound on the internal speakers, a 3.5mm headset, and a USB headset. Unlike with the installed OS the "Test Sound" DID visually indicate it was playing a sound file. No sound can be heard with the internal speakers but the test sound DOES play through both the 3.5mm and the USB headsets.
Back on the installed OS, despite the "Test Sound" not working for either the 3.5 nor the USB headset, I went ahead and tested them by playing my own audio files. Both headsets worked but the internal speakers still do not.
The one oddity that still bothers me (not that broken speakers don't bother me) is that the "Test Sound" does not work, or visually indicate that it's playing on the installed OS, aside from that I believe all signs point to a hardware issue with my laptop speakers.
For those who are interested here is the output of "aplay -l"
**** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0
28 NOV 2013 UPDATES:
I have now reformatted and re-installed Ubuntu 13.10 and sound issues persist. This time I cannot hear sound from built-in speakers nor via the 3.5mm jack.
Sound works via USB headset for 3-5min but then they disappear from the list of sound devices.
I'm at a loss for explanation.
Any help or ideas would be much appreciated!