Public bug reported:
After runing the latest update this morning I no loger have sound on my
Dell laptop (Inspiron E1705). My sound control panel used to show the
sound output choices of "Digital Output(S/PDIF)" and "Analog Output" but
after the upddate it just shows "Digital Output(S/PDIF)" .
These Dell laptops requiring modifying the analog-output.conf.common
file, and when I remove that modification "Analog Output" appears as a
choice again sound works, but badly because these Dell's require that
modification or the sound either silient or very loud through the range
of the volume control. I imagine many people with these Dell laptops
are having this problem since this update. The modification that makes
these Dells work (which this update broke) is in the file:
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common
and replacing:
[Element PCM]
switch = mute
volume = merge
override-map.1 = all
override-map.2 = all-left,all-right
with the following:
[Element Master]
switch = mute
volume = ignore
[Element PCM]
switch = mute
volume = merge
override-map.1 = all
override-map.2 = all-left,all-right
[Element LFE]
switch = mute
volume = ignore
Making that change and restarting removes "Analog Output" as a choice
for Output's. I will be glad to provide more information about my
system if someone will tell me what would be useful.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1003712
Title:
No sound after latest update for Ubuntu 12.04 LTS
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