Red Hat Bugzilla – Bug 197427
No sound with software mixing (snd-intel8x0)
Last modified: 2007-11-30 17:11:36 EST
I only try to get sound via the optical output to my amplifier.
Steps to Reproduce:
2. Normal setup: select iec958, software mixing not disabled
3. Play: no sound, press yes to the question anyway, close
4. aplay /usr/share/system-config-soundcard/sound-sample.wav -> no sound
6. iec958, disabled software mixing
7. Play: no sound, press yes to the question anyway, close
8. aplay /usr/share/system-config-soundcard/sound-sample.wav -> SOUND!
Created attachment 131836 [details]
scsound.log from the last system-config-soundcard run
It should be fixed in FC6, please reopen if not.
So what is the problem?
How can I get a fix to FC5?
Does something like getting a new alsa-lib or kernel help?
Or is there a patch somewhere?
A patch and/or package for FC5 isn't available, it should be fixed in FC6test2.
So can you at least give some information about the problem so that I can try to
get it working without installing FC6test2?
Maybe a bug report in alsa side?
If you want to use s-c-s for configuring your card, you have to use
alsa-lib/alsa-utils/system-config-soundcard packages from devel (rawhide).
(The best way is download them as src.rpm and rebuild them with rpmbuild
And you definitely should have alsa-lib-1.0.12rc1 or later. This bug is a
problem with alsa-lib (with configuration files located in /etc/alsa)
Thanks. After rebuilding alsa-lib, alsa-utils, cairo, pycairo and
system-config-soundcard from development it at least is able to configure it and
play the sample.
But I have to say that the sound is not correct:
* Playing several oggs at a time does not work like it should. Instead of
getting properly mixed sound, the first sound somehow changes.
* It plays the oggs too fast. ogg123 says that it is 44100 Hz, my amplifier
says it is 44.1 kHz, but it plays it too fast. I can workaround this by using
the alsa rate plugin to convert it to 48000 Hz.
Could you check it in aplay? It may be a problem in ogg123.
Also aplay plays too fast. My kernel currently is 2.6.17-1.2157_FC5smp.
(In reply to comment #9)
> Also aplay plays too fast. My kernel currently is 2.6.17-1.2157_FC5smp.
Please check the latest ALSA drivers (http://people.redhat.com/stransky/alsa/)
and/or report your problem to ALSA upstream (www.alsa-project.org)