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d_fajardo

Member

Registered: 2017-07-28

Posts: 1,689

[Solved] Cannot access my DAC after installing NVIDIA graphics card

I just installed a new P2000 Quadro graphics card which I am running a few issues with but I will deal with them in separate threads.

I had a fully working DAC when I was running my computer with just the builtin Intel graphics. Mpd, Cantata and pulse all working OK. All output was setup to come out of the DAC. But when I installed this graphics card, I can't access my DAC any longer. Here is what aplay -l says:

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC1220 Analog [ALC1220 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 1: ALC1220 Digital [ALC1220 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

No mention of the DAC. The HDA NVidia is obviously from the graphics card and the ALC1220 is the onboard motherboard sound card.
I will switch back to the integrated Intel Graphics and post my working setup.

Last edited by d_fajardo (2019-01-21 21:34:25)

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,689

Re: [Solved] Cannot access my DAC after installing NVIDIA graphics card

After switching back to Intel I get my DAC back. aplay -l:

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC1220 Analog [ALC1220 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC1220 Digital [ALC1220 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  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 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: C20 [Cambridge Audio USB Audio 2.0], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

It might just be some indexing problem. I'll investigate further and report.

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,689

Re: [Solved] Cannot access my DAC after installing NVIDIA graphics card

Yes I can confirm it was the indexing. I had an alsa-base.conf:

options snd_usb_audio index=0
options snd_hda_intel index=1

when I was using the Intel graphics because the indexing keeps changing. I removed that and my DAC is back in the list. I just had to update my mpd to the new card index. Sound working now so I can close this thread.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,430

Re: [Solved] Cannot access my DAC after installing NVIDIA graphics card

It's still going to be random, you should account for all combinations to guarantee ordering for example your alsa-base.conf should look like

options snd_usb_audio index=0
options snd_hda_intel index=1,2
#Alternatively if you don't care about a specific index use a negative integer
#options snd_hda_intel index=-2,-2 #Will make them occupy any free index as long as it isn't 0

or/and not rely on the card index in your mpd configuration

Last edited by V1del (2019-01-21 23:10:18)

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,689

Re: [Solved] Cannot access my DAC after installing NVIDIA graphics card

Thanks for the tip V1del. I will incorporate that. I didn't know you can have a negative index!