[alsa-devel] Kernel 3.2, and "speaker" controlling headphone path

David Henningsson david.henningsson at canonical.com
Wed Jul 11 12:50:20 CEST 2012


It seems like on one machine the "Speaker Playback Volume" was part of 
the headphone path, in combination with PulseAudio this is leading to 
muted headphones.

One of my colleagues wrote a workaround for that specific machine - I'm 
providing links in case you're interested:

The patch:
https://launchpadlibrarian.net/109499922/restrict_bass.patch

Alsa-info:
https://launchpadlibrarian.net/109251353/bad-kernel-yes-headphones.txt

Bug link:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/994685


-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic



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