[Pkg-alsa-devel] Bug#437115: Bug#437115: Fix found, sort of

[Elimar Riesebieter]

On Sat, 15 Sep 2007 the mental interface of
Teemu Ikonen told:

[...]
> ), for some odd reason the Headphone Jack Sense and Line Jack Sense
> mixer channels need to be _muted_ for the sound to work at all on some
> Thinkpad models.
> 
> The reason for this idiocy is beyond me, but the real solution to this
> problem would probably involve disabling these channels completely in
> the AD1981B kernel driver, when it's being run on affected models.
> Anyone capable of writing a patch to the driver for this?

They are both set to off by default in /etc/init.d/alsa-utils:

switch_control "Headphone Jack Sense" off
switch_control "Line Jack Sense" off

You can do as follows:
# rm /var/lib/alsa/asound.state
# /etc/init.d/alsa-utils start

Check wether the Jack Senses are muted?

Elimar


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