Bug 507492 - Selecting analog or digital output in pulseaudio pavucontrol has no effect
Selecting analog or digital output in pulseaudio pavucontrol has no effect
Product: Fedora
Classification: Fedora
Component: alsa-lib (Show other bugs)
x86_64 Linux
low Severity medium
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Assigned To: Jaroslav Kysela
Fedora Extras Quality Assurance
Depends On:
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Reported: 2009-06-22 20:20 EDT by John Thacker
Modified: 2010-06-28 09:14 EDT (History)
4 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-06-28 09:14:15 EDT
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Description John Thacker 2009-06-22 20:20:10 EDT
Description of problem:
As we know from bug 496320, pulseaudio defaults to digital output over analog.  pavucontrol has an option in the configuration tab to switch between analog and digital output, but this has no effect for me.  I have a Audigy2 Value, emu10k1 chip.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Login to X.
2. Try to listen to music.
3. Open pavucontrol, select Configuration tab, select "Output Analog Stereo," or any other profile with Analog Output.
4. Switch between Analog and Digital Output.
Actual results:
No sound, no effect from switching profiles.  If analog output is currently enabled through alsamixer, selecting Digital Output in pavucontrol has no effect either.

The profiles, in order to switch between analog and digital output, should mute and turn on the switch called "IEC958 Optical Raw" in alsamixer, or by alsactl:

        control.31 {
                comment.access 'read write'
                comment.type BOOLEAN
                comment.count 2
                iface MIXER
                name 'IEC958 Optical Raw Playback Switch'
                value.0 false
                value.1 false

However, this switch is not changed.

Expected results:

Output should switch between digital and analog as selected.

Additional info:
I can use alsactl restore or alsamixer every time I log in to reset to analog output.  If bug 496320 were fixed, then this problem would be less obvious to me since I use analog speakers, but solving it is independent of that bug.

alsactl init (which doesn't affect this switch, as it doesn't know whether I want digital or analog output) gives this message indicating that it cannot
precisely identify my emu10k1 Audigy2 Value card:

Unknown hardware: "Audigy2" "SigmaTel STAC9750,51" "AC97a:83847650" "0x1102"
Hardware is initialized using a guess method
Comment 1 Lennart Poettering 2009-06-25 11:18:43 EDT
Sounds like a problem in the spdif:xxx device string logic in ALSA. Reassigning to ALSA.
Comment 2 Bug Zapper 2010-04-27 11:10:57 EDT
This message is a reminder that Fedora 11 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 11.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
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Comment 3 Bug Zapper 2010-06-28 09:14:15 EDT
Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 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 
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