All of a sudden music files do not produce any sound through my Azalia sound card. I started YaST and tested the card and it produced the test sound. Console use of mpg123 does not work. Mpv produces no sound yet shows the files playing- Pavucontrol which I use also shows signal strengths. Audacity shows the some. Still nothing coming out of the speakers. Then after a few minutes the YaST test is silent although output volumes are still 100%. I switched to headphones in case my amplifier is the problem. No sound.
Any suggestions as to where I should start the diagnosis?
Even though I am sure I had installed the codecs previously I did it again using the Multimedia Guide for openSUSE Leap 42.3. Nothing changed, still no sound. Now here is some more information. When I log into Xfce I have an autostart script that plays a short piece of music using mpg123. It still makes sound. But after that it will not play a second time and although the autostart script takes about 15 seconds to complete playing the second attempt terminates immediately. Then when I try the third time it takes 15 seconds and “top” shows both pulseaudio and mpg123 running but still no sound. Repeated attempts alternate between immediate termination and 15 second operation. I believe Xfce is terminating some running application. After all of this the YaST card test still plays.
A real mystery. I hate to have to re-install to clear this but I think that might be the only solution.
Here is “zypper se pulse” output in case I am missing something obvious.
# zypper se pulseRetrieving repository 'Packman Repository' metadata ......................[done]
Building repository 'Packman Repository' cache ...........................[done]
Retrieving repository 'packman' metadata .................................[done]
Building repository 'packman' cache ......................................[done]
Retrieving repository 'openSUSE-Leap-42.3-Update' metadata ...............[done]
Building repository 'openSUSE-Leap-42.3-Update' cache ....................[done]
Loading repository data...
Reading installed packages...
S | Name | Summary | Type
---+------------------------------------+---------------------------+-----------
i+ | alsa-plugins-pulse | Pulseaudio Plug-In for -> | package
i+ | alsa-plugins-pulse-32bit | Pulseaudio Plug-In for -> | package
| apulse | PulseAudio emulation fo-> | package
| apulse-32bit | PulseAudio emulation fo-> | package
| cmus-plugin-pulse | Pulseaudio output plugi-> | package
| cmus-plugin-pulse-debuginfo | Debug information for p-> | package
| gyachi-plugin-pulseaudio | PulseAudio sound driver | package
| gyachi-plugin-pulseaudio-debuginfo | Debug information for p-> | package
| libgvncpulse-1_0-0 | Pulse audio bridge for -> | package
| libpt2_10_10-plugins-pulse | Pulseaudio support for -> | package
| libpulse-devel | Development package for-> | package
| libpulse-devel-32bit | Development package for-> | package
i+ | libpulse-mainloop-glib0 | GLIB 2.0 Main Loop wrap-> | package
| libpulse-mainloop-glib0-32bit | GLIB 2.0 Main Loop wrap-> | package
i+ | libpulse0 | Client interface to Pul-> | package
i+ | libpulse0-32bit | Client interface to Pul-> | package
i | libxine2-pulse | Pulseaudio plugin for x-> | package
| libxine2-pulse-debuginfo | Debug information for p-> | package
i+ | mpg123-pulse | Pulseaudio Support for -> | package
| mpg123-pulse-32bit | Pulseaudio Support for -> | package
i+ | pulseaudio | A Networked Sound Server | package
| pulseaudio | A Networked Sound Server | srcpackage
i+ | pulseaudio-bash-completion | PulseAudio Bash complet-> | package
| pulseaudio-dlna | A DLNA server which bri-> | package
| pulseaudio-dlna | A DLNA server which bri-> | srcpackage
| pulseaudio-equalizer | PulseAudio's LADSPA plu-> | package
| pulseaudio-esound-compat | ESOUND compatibility fo-> | package
| pulseaudio-gdm-hooks | PulseAudio GDM integrat-> | package
i+ | pulseaudio-lang | Languages for package p-> | package
| pulseaudio-module-bluetooth | Bluetooth support for t-> | package
| pulseaudio-module-gconf | GCONF module for PulseA-> | package
| pulseaudio-module-jack | JACK support for the Pu-> | package
| pulseaudio-module-lirc | LIRC module for PulseAu-> | package
| pulseaudio-module-x11 | X11 module for PulseAudio | package
| pulseaudio-module-zeroconf | Zeroconf module for Pul-> | package
| pulseaudio-system-wide | Support for running Pul-> | package
i+ | pulseaudio-utils | PulseAudio utilities | package
i+ | pulseaudio-utils-32bit | PulseAudio utilities | package
| pulseaudio-zsh-completion | PulseAudio zsh completion | package
| pulseview | Qt-based GUI for sigrok | package
| typelib-1_0-GVncPulse-1_0 | Pulse audio bridge for -> | package
| xfce4-panel-plugin-pulseaudio | Pulseaudio Volume Contr-> | package
| xfce4-volumed-pulse | Daemon Providing Suppor-> | package
| xmms2-plugin-pulse | Pulse Support for xmms2 | package
linux-q3kn:/home/ion #
Some progress. If I boot to a level 3 console my sound works. If I boot into Xfce and open a console (F3) it does not work. So it confirms my assumption that Xfce is causing the problem.