[alsa-devel] Changing default card using its name
Hi,
Please excuse my ignorance but I have not been able to figure out this simple task. Nowadays most PCs have multiple soundcards (onboard plus HDMI, often another PCI card). Order of the cards is not stable. How do I define in /etc/asound.conf another default card using its name and keep the PCMs defined by its corresponding alsa card/pcm config files?
In my case aplay -L: null Discard all samples (playback) or generate zero samples (capture) front:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog Front speakers surround40:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Intel,DEV=0 HDA Intel, STAC92xx Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers hdmi:CARD=NVidia HDA NVidia, NVIDIA HDMI HDMI Audio Output front:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI DAC/ADC Front speakers rear:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC Rear speakers surround40:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC 4.0 Surround output to Front and Rear speakers surround41:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI 2nd DAC 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=CMI8768,DEV=0 C-Media CMI8768, C-Media PCI DAC/ADC IEC958 (S/PDIF) Digital Audio Output
Is it actually possible to have iec958:CARD=CMI8768,DEV=0 as the system-wide device iec958? I have not been successful with
defaults.ctl.card "CMI8768"
which IMO would have been the simplest solution.
Thanks a lot for help.
Regards,
Pavel Hofman.
Pavel Hofman napsal(a):
Hi,
Please excuse my ignorance but I have not been able to figure out this simple task. Nowadays most PCs have multiple soundcards (onboard plus HDMI, often another PCI card). Order of the cards is not stable. How do I define in /etc/asound.conf another default card using its name and keep the PCMs defined by its corresponding alsa card/pcm config files?
In my case aplay -L:
defaults.ctl.card "CMI8768"
which IMO would have been the simplest solution.
Well, adding the exclamation mark
!defaults.pcm.card "CMI8768"
does not work either. It may look trivial, but changing the default card while preserving the fine-tuned device definitions the for each card in /usr/share/alsa/pcm/* and /usr/share/alsa/cards/* has been an unattainable peak for me so far. Neither have I been able to google it anywhere. IMO there must be a simple way to do this key change.
Thanks a lot for suggestion and hints.
Pavel.
On Tue, 23 Nov 2010, Pavel Hofman wrote:
Pavel Hofman napsal(a):
Hi,
Please excuse my ignorance but I have not been able to figure out this simple task. Nowadays most PCs have multiple soundcards (onboard plus HDMI, often another PCI card). Order of the cards is not stable. How do I define in /etc/asound.conf another default card using its name and keep the PCMs defined by its corresponding alsa card/pcm config files?
In my case aplay -L:
defaults.ctl.card "CMI8768"
which IMO would have been the simplest solution.
Well, adding the exclamation mark
!defaults.pcm.card "CMI8768"
What about:
defaults.pcm.!card "CMI8768"
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.
participants (2)
-
Jaroslav Kysela -
Pavel Hofman