[Solved] ALSA - unable to open slave

[FilthyPitDog]

When I try playing any audio with alsa I get this below

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➜ speaker-test -c2

speaker-test 1.2.12

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.2.12/work/alsa-lib-1.2.12/src/pcm/pcm_dmix.c:1000:(snd_pcm_dmix_open) unable to open slave
Playback open error: -2,No such file or directory

There is nothing in /var/tmp/portage so I dont know why its checking there...?

[FilthyPitDog]

Solved

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➜ speaker-test -c2

speaker-test 1.2.12

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 2048 to 16384
Period size range from 1024 to 1024
Periods = 4
was set period_size = 1024
was set buffer_size = 4096
 0 - Front Left
 1 - Front Right

by creating ~/.asoundrc with contents:

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defaults.pcm.!card 2
defaults.pcm.!device 0

as card 2 is what I needed

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➜ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 7: HDMI 1 [MSI G27CQ4 E2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Generic_1 [HD-Audio Generic], device 0: ALC1220 Analog [ALC1220 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0