Gentoo Archives: gentoo-user

From: Florian Philipp <lists@××××××××××××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Switch between sound cards?
Date: Sun, 24 Feb 2008 20:34:27
Message-Id: 1203885220.10427.113.camel@NOTE_GENTOO64.PHHEIMNETZ
In Reply to: Re: [gentoo-user] Switch between sound cards? by Grant
1 On Sun, 2008-02-24 at 11:34 -0800, Grant wrote:
2 > > > I have a USB sound card and an internal sound card in my laptop. Is
3 > > > there a way to switch between them while the system is booted? Is
4 > > > module loading/unloading via modprobe the best way to do it?
5 > > >
6 > > > - Grant
7 > > > --
8 > > > gentoo-user@l.g.o mailing list
9 > > >
10 > > >
11 > >
12 > > Why switch between them when you can use them both at the same time as
13 > > hw:0 and hw:1?
14 >
15 > Thanks Mark. After studying your config, here is mine:
16 >
17 > alias snd-card-0 snd-hda-intel
18 > options snd-hda-intel index=1
19 > options snd-hda-intel model=acer
20 >
21 > alias snd-card-1 snd-usb-audio
22 > options snd-usb-audio index=0
23 >
24 > alias sound-slot-0 snd-card-0
25 > alias sound-slot-1 snd-card-1
26 >
27 > alias /dev/mixer snd-mixer-oss
28 > alias /dev/dsp snd-pcm-oss
29 > alias /dev/midi snd-seq-oss
30 >
31 > options snd cards_limit=2
32 >
33 > I get sound from the USB card but not from the internal card
34 > (snd-hda-intel). How can I tell the system to turn off the USB card
35 > and turn on the internal card?
36 >
37 > - Grant
38 >
39
40 You might want to take a look at the new pulseaudio daemon. I don't use
41 it but as far as I know it's perfect for complex setups like yours.
42 Think of it as a (transparent, if necessary) layer between your software
43 and alsa. It should be easier to reconfigure than alsa.
44
45 You could use it (or the older the older jack daemon) to send audio to
46 both devices.

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Re: [gentoo-user] Switch between sound cards? Grant <emailgrant@×××××.com>