HI. OK. I had a bit more time to check things out. I have full pulseaudio installed on my setup under CentOS 6.8, including the hooks from alsa to pulseaudio and hooks to pulseaudio from X server. Additionally, I have PulseAudio Sound System in my startup applications from Centos 6.8, Gnome 2. That is what I had to manually cobble up on openSuSE. Best of luck. On Sun, Apr 2, 2017 at 10:31 AM, Kay Schenk <kay.schenk at gmail.com> wrote: > > > On 03/29/2017 06:43 AM, ken wrote: > >> On 03/28/2017 08:53 PM, ken wrote: >> >>> The www has failed me with this, so I'm trying you guys. Sound worked >>> great out of the box when I installed 7.2... Yay! I could watch all >>> kinds of videos, like on facebook and youtube. And I could listen to >>> most podcasts too. But then something happened. It was either a >>> kernel upgrade or that I installed vlc (for watching videos on DVD) >>> and the whole stack of codecs for it... I don't know exactly when, but >>> at some point I no longer had sound with youtube and other web >>> videos. The videos played fine, just no sound. Note that using vlc, >>> both video and the audio with it play just fine. I need to select the >>> audio driver (from a list in a vlc menu), however, else the sound >>> won't work in vlc either. >>> >>> If I go into the Applications menu, then System Tools -> Settings -> >>> Sound, under "Choose a device for sound output:" there are no devices >>> listed. There used to be. >>> >>> If I run "aplayer file.wav", nothing plays (no sound at all) and I get >>> the error "main:786: audio open error: No such file or directory". >>> If, on the other hand, I run "aplay file.wav -D plughw:0" (i.e., >>> specify the/a device), I do get sound, the file does play. >>> >>> I ran alsa-info.sh and it posted tons of info from it on my setup at >>> http://www.alsa-project.org/db/?f=1dba91886be054df4816000768 >>> a0f5b109947a48. >>> Yet it still doesn't tell me what's missing. >>> >>> Anyone here have an idea...? or thoughts about where to look next? >>> >>> tia, >>> ken >>> >> >> Still poking around my system for a solution, I found this comment at >> the top of /usr/lib/systemd/system/alsa-state.service and two other >> files in the same directory: >> >> # Note that two different ALSA card state management schemes exist and >>> they >>> # can be switched using a file exist check - >>> /etc/alsa/state-daemon.conf . >>> >> >> The /etc/alsa/state-daemon.conf file consists of one line: >> >> # Remove this file to disable the alsactl daemon mode >>> >> >> I understand that a daemon continually runs, waiting for an event and >> then acts in some way in response, but it has to mean something more in >> this context. Anyone familiar with the internals of this? >> >> >> I am not on systemd right now. I'm on CentOS 6.8. However, on an openSUSE > version I was. Sound problems were the bane of my existence forever it > seemed. So it maye take you a while to troubleshoot this. Using JUST alsa > you should be able to play sound files at the command line. See: > http://www.alsa-project.org/main/index.php/Main_Page > > > I think I may have installed pulse-audio to get things working under > systemd with my GUI. What is your GUI? This may be a factor. > > -- > ------------------------------------------ > MzK > > "If evolution is outlawed, > only outlaws will evolve." > > -- Jello Biafra > > > -- ---------------------------------------------------------------------- MzK "If evolution is outlawed, only outlaws will evolve." -- Jello Biafra