Sound problems again...

[Jogchum Reitsma]

Hi all,

While I love my opensuse/kde systems dearly, sound has always been a 
hassle here. Sometimes it works fine, sometimes it doesn't work at all, 
sometimes it works half.

At the moment, I have a desktop running opensuse 13.1/KDE 4.11.5 on 
which youtube sound through Firefox works, but apparently nothing else. 
CD-playing, local music files, other-than-youtube movies trough Firefox, 
(e.g.
http://vimeo.com/blenderHack/stabilizerdemo) do not work.

In all these cases (including the one where sound is indeed reproduced!) 
kmix says there is no sound stream being played.

The sound card is a Xonar STX, which indeed is granted a tab in kmix. 
But the menu "Configuration->Sound configuration" shows no hardware at 
all, only the PulsAudio server. On the other hand, 
"Configuration->Select main channel" says the current mixer is Xonar, 
and the channel representing the main volume is the Master of the Xonar STX.

I tried to remove/re-install the Xonar with Yast (the main configuration 
tool of opensuse), but no luck. Testing the card from within Yast works 
fine, though.

Frustrating is that is *has* worked a certain time, until some upgrade 
(i keep the system in sync with the 13.1 repos for opensuse).

Anyone any idea?

(BTW, I also have a laptop running opensuse Factory, which behaves just 
the opposite: everything works, except for Firefox sound... But that's 
something for another thread.)
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