Red Hat Bugzilla – Bug 376851
PCM optical output no longer works in fedora 8
Last modified: 2013-01-30 21:44:31 EST
Description of problem: It doesn't seem to be possible to send raw PCM audio out my motherboard's optical sound port any more. This works in Fedora 7 (for doing things like playing DVDs with 5.1 sound) Version-Release number of selected component (if applicable): alsa-utils-1.0.15-1.fc8 alsa-lib-1.0.15-1.fc8 bluez-utils-alsa-3.20-4.fc8 alsa-lib-1.0.15-1.fc8 alsa-plugins-pulseaudio-1.0.14-5.fc8 alsa-lib-devel-1.0.15-1.fc8 How reproducible: totally Steps to Reproduce: 1. try to find PCM output in mixer - it ain't there 2. 3. Actual results: no raw audio stream output Expected results: raw audio output Additional info: Here's the script I was using to successfully play DVDs on Fedora 7: amixer set IEC958 unmute amixer set 'IEC958 Playback AC97-SPSA' 0 amixer set 'IEC958 Playback Source' PCM exec mplayer dvd://1 -alang en -ao alsa:device=hw=0.0 -ac hwdts,hwac3, -monitoraspect 16:9 -fs I can't find any equivalent on Fedora 8.
Created attachment 254891 [details] scsconfig.log saved from system-config-soundcard
After doing some reading, I have a feeling this has something to do with pulseaudio. Are there instructions for dummies somewhere on how to disable pulseaudio so I can see if it works once I do that?
OK, definitely a pulseaudio issue. I used a big hammer and moved /etc/alsa/pcm/pulseaudio.conf and /etc/alsa/pulse-default.conf to a different directory, and everything is back to "normal". Now I just gotta figure out the right way to do this without such a big hammer (if pulseaudio was supposed to make my life simpler, it didn't work :-).
remove alsa-plugins-pulseaudio; # rpm -e alsa-plugins-pulseaudio --nodeps sound comes back again. I have all other things installed but removed this one only. The issue is with that package (alsa-plugins-pulseaudio)
Perhaps related to my bug #385481 ? I can't get SPDIF out to work in F8 on an Audigy. Worked fine in F7 and lower.
okay, moved to pulseaudio.
This might be related? Installed Fedora 8 some time ago on a Dell Dimension 5150. All was well. I also use the digital output to a surround sound processor. Everything has been working well. Until today. Yum update pulled a bunch of packages having to do with Pulse Audio. After a reboot the machine lost its' ability to make noise. Periodically after updates I have to go back into the switches tab in the volume control and recheck the "SB Live Analog/Digital Output Jack" as that must be checked for this to work. It's checked. No sound. I checked all 5 devices that can be selected in the Volume Control Preferences applet: SB Live 5.1 [SB0220] (Alsa mixer)<-- What normally works SigmaTel something <---Never use. There were more after that Pulse Audio thing was installed but I'm down to 2 for a reason: yum remove pulseaudio and the problem was fixed. This: pulseaudio i386 0.9.8-5.fc8 updates 334 k is a bad egg.
For now PA doesn't support SPDIF natively. You can always bypass PA if you need spdif support by using "spdif:0" (or suchlike) as ALSA device instead of the default.
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Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.