[pulseaudio-discuss] possible headphone bug: pulse or ALSA?

Lennart Poettering lennart at poettering.net
Tue Nov 3 13:06:31 PST 2009

On Tue, 03.11.09 15:52, Jud Craft (craftjml at gmail.com) wrote:

> Sorry to take up your time, but if I have a headphone jack-event
> related bug, is that the realm of Pulse or ALSA?

That depends.

> Specifically, my F11 install detects jack-in perfectly, EXCEPT at
> startup; it cannot tell from power on (and possibly from
> standby-resume) that I have the headphones plugged in (although sound
> works, it fails to mute the main speakers).

It could be that PA actually overrides what was sensed. Cou you check
if selecting a different "connector" in g-v-c makes things work for

The jack sensing situation is a big big mess. There are two ALSA APIs
being discussed for this right now, different drivers implement things
differently, there is hw switching and sw switching and everything is
very confusing.


Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4

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