Greetings,
I've decided to give PulseAudio a try and since it is working almost without any problems; the only problem I haven't been able to solve (even after some searching through the Internet) is this one:
At the moment I've got only 1 mixer channel for output, called Internal Audio Analog Stereo. Now this channel controls both the volume going to the integrated speakers of my notebook and to headphones as well. What I was trying to do is to separate those channels in the same way how ALSA does it without PulseAuio.
ALSA Situation without PulseAudio:
~ Master
~ Speaker
~ PCM
~ Front
ALSA with PulseAudio:
~ Master (controls everything)
I was hoping to use the Master and Speaker in PulseAudio. My attempts were unsuccessful, hopefully some of you will help me out here
.
Here are some tech data about my distro, ALSA, PulseAudio and sound card:
Linux Distro info + PulseAudio USE Flags:
Code:
Distro: Gentoo Linux
$ uname -srmp
Linux 2.6.37-tuxonice x86_64 Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz
$ eix pulseaudio
[I] media-sound/pulseaudio
...
Installed versions: 0.9.22{tbz2}(15:01:38 03/26/11)(X alsa asyncns avahi caps dbus glib ipv6 lirc tcpd udev -bluetooth -doc -gnome -jack -libsamplerate -oss -realtime -system-wide -test)
Alsa build in-kernel, not as alsa-driver
$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
01:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)
ALSA + PulseAudio:
Code:
$ amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 65536
Mono:
Front Left: Playback 25355 [39%] [on]
Front Right: Playback 25355 [39%] [on]
ALSA:
Code:
$ amixer -c0 # only relevant channels pasted
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
Playback channels: Mono
Limits: Playback 0 - 64
Mono: Playback 32 [50%] [-24.00dB] [on]
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 64 [100%] [0.00dB] [on]
Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 252 [99%] [0.60dB]
Front Right: Playback 252 [99%] [0.60dB]
Simple mixer control 'Front',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 64 [100%] [0.00dB] [on]
Front Right: Playback 64 [100%] [0.00dB] [on]
The output of alsainfo can be found here:
link
Thank you for any suggestions.
