[alsa-devel] Problems with gain controls
Hi,
Does anyone know how to disable pulse from making any changes to the alsa hardware mixer controls? I would prefer pulse to use software gain controls, and not touch the alsamixer levels. pulse seems to do a very bizarre thing. The single master gain control within pulse changes both the alsamixer PCM and Master controls.
Kind Regards
James
On Sun, 2009-08-09 at 11:28 +0100, James Courtier-Dutton wrote:
pulse seems to do a very bizarre thing. The single master gain control within pulse changes both the alsamixer PCM and Master controls.
That behaviour is by design, and described as a feature here: http://0pointer.de/blog/projects/oh-nine-sixteen.html
Kind Regards James
Regards, Tony V.
2009/8/9 Tony Vroon tony@linx.net:
On Sun, 2009-08-09 at 11:28 +0100, James Courtier-Dutton wrote:
pulse seems to do a very bizarre thing. The single master gain control within pulse changes both the alsamixer PCM and Master controls.
That behaviour is by design, and described as a feature here: http://0pointer.de/blog/projects/oh-nine-sixteen.html
Maybe so, but how do I disable it? I want pulseaudio doing software volume control, and not touching the alsa hardware controls. You might ask why I want it disabled, that is because it is a broken method. One cannot have a the gain control on the input to a device linked to the gain control on the output of a device. If one ever has two different inputs, E.g. from the CD, it just messes things up. With the current method, all I get is noise from the speakers. If I kill pulseaudio, I get nice sound again. I don't understand why pulseaudio cannot see how much of a broken idea the current method is.
Kind Regards
James
2009/8/9 James Courtier-Dutton james.dutton@gmail.com:
2009/8/9 Tony Vroon tony@linx.net:
On Sun, 2009-08-09 at 11:28 +0100, James Courtier-Dutton wrote:
pulse seems to do a very bizarre thing. The single master gain control within pulse changes both the alsamixer PCM and Master controls.
That behaviour is by design, and described as a feature here: http://0pointer.de/blog/projects/oh-nine-sixteen.html
Maybe so, but how do I disable it? I want pulseaudio doing software volume control, and not touching the alsa hardware controls. You might ask why I want it disabled, that is because it is a broken method. One cannot have a the gain control on the input to a device linked to the gain control on the output of a device. If one ever has two different inputs, E.g. from the CD, it just messes things up. With the current method, all I get is noise from the speakers. If I kill pulseaudio, I get nice sound again. I don't understand why pulseaudio cannot see how much of a broken idea the current method is.
I found out how to disable it. I edited analog-output.conf.common and changed "merged" to "zero" for the PCM control.
participants (2)
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James Courtier-Dutton -
Tony Vroon