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My laptop has two sound cards , both are hda-intel.
I want to disable the HDA nvidia when boot up ? And I hope this sound card can be enabled manually when necessary .
I that possible to do with acpi_call , or any method else ?
Sorry for my English
cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf1a00000 irq 45
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf1000000 irq 17
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC665 Analog [ALC665 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
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You need to blacklist the card you do not want. How to do that is described here: https://wiki.archlinux.org/index.php/Ad … Sound_Card
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it doesn't work for me. Both cards are using same module (hda-intel), and BIOS doesn't support to disable one of them although alsa wiki recommends.
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I believe that section is referring to when a S/PDIF video card is installed not the HDMI port. Looking at your aplay the second sound card is for when you have a HDMI device plugged into it.
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