No sound in fresh Jaunty/Karmic install until disabling "external amplifier"
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-utils (Ubuntu) |
Won't Fix
|
Low
|
Daniel T Chen | ||
linux (Ubuntu) |
Fix Released
|
Low
|
Daniel T Chen |
Bug Description
Binary package hint: alsa-base
Sound does not work at all until I load gnome alsa mixer and un-check "External Amplifier".
$ lspci | grep -i aud
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-
alsa-info.sh output: http://
(My config is currently not the default as I've tried a few other things along the way, but it seems like the default "External Amplifier" setting was the only problem.)
This computer is a Sony VAIO VGN-T350P.
$ lsb_release -rd
Description: Ubuntu 9.04
Release: 9.04
$ apt-cache policy alsa-base
alsa-base:
Installed: 1.0.18.
Candidate: 1.0.18.
Version table:
*** 1.0.18.
500 http://
100 /var/lib/
Changed in alsa-driver (Ubuntu): | |
status: | New → Confirmed |
Changed in alsa-driver (Ubuntu): | |
status: | Confirmed → Triaged |
assignee: | nobody → Daniel T Chen (crimsun) |
importance: | Undecided → Low |
affects: | alsa-driver (Ubuntu) → alsa-utils (Ubuntu) |
Changed in alsa-utils (Ubuntu): | |
assignee: | Daniel T Chen (crimsun) → nobody |
assignee: | nobody → Daniel T Chen (crimsun) |
Changed in alsa-utils (Ubuntu): | |
status: | Triaged → Fix Committed |
Changed in alsa-utils (Ubuntu): | |
status: | Incomplete → Confirmed |
I can confirm the problem also occurs here, after a fresh install of Ubuntu 9.04 on a Vaio VGN-B1VP, and the fix works.
I applied all available updates per 30 September 2009, played with the levels in alsamixer to no avail (and then restored them to their initial values), then found this mention of an "External Amplifier" setting (through Google). That is to say, disabling this was the only change from the default post-installation settings, and sounds could indeed be played back after the change.
I think I just submitted further system details using ubuntu-bug although I don't see them on this page...