[PROBLEM] Failed to open "ALSA Default" (alsa); Failed to open ALSA device "_audioout": No such

[ruint]

I just changed it back to 'none', restarted, powered it off, and re-seated the hifiberry dac2.

The reseat may have worked as the card now shows...

Code:

ALSA cards: (0:b1 | 1:Headphones | 2:empty | 3:empty

Now change back to your HiFiberry DAC in the Audio Config  SAVE and reboot....

tried that. here's the log now:

20210509 155550 worker: -- Start
20210509 155550 worker: Successfully daemonized
20210509 155550 worker: Integrity check (passed)
20210509 155551 worker: File check (OK)
20210509 155552 worker: Session vacuumed
20210509 155552 worker: Session loaded
20210509 155552 worker: Debug logging (OFF)
20210509 155552 worker: -- Audio debug
20210509 155552 worker: ALSA cards: (0:empty | 1:empty | 2:empty | 3:empty
20210509 155552 worker: MPD config: (0:HiFiBerry DAC+ Pro | mixerDigital) | card:0)
20210509 155552 worker: ALSA mixer actual (Digital)
20210509 155552 worker: ALSA Digital volume set to (Invalid card number.)
20210509 155552 worker: -- System
20210509 155555 worker: Host     (moode)
20210509 155555 worker: moOde    (7.2.1 2021-05-06)
20210509 155555 worker: RaspiOS  (10.6)
20210509 155555 worker: Kernel   (5.4.77-v7+ #1371)
20210509 155555 worker: Platform (Pi-3B+ 1.3 1GB)
20210509 155555 worker: ARM arch (armv7l, 32-bit kernel)
20210509 155555 worker: MPD ver  (0.22.6_p0x3)
20210509 155555 worker: CPU gov  (ondemand)
20210509 155556 worker: USB boot enabled
20210509 155556 worker: File system not expanded yet
20210509 155556 worker: HDMI port on
20210509 155556 worker: -- Network
20210509 155556 worker: eth0 exists
20210509 155556 worker: IP addr (192.168.1.7)
20210509 155556 worker: Netmask (255.255.255.0)
20210509 155556 worker: Gateway (192.168.1.1)
20210509 155556 worker: Pri DNS (192.168.1.1)
20210509 155556 worker: Domain  (None)
20210509 155556 worker: wlan0 exists
20210509 155556 worker: wifi country (US)
20210509 155556 worker: wlan0 SSID is blank
20210509 155556 worker: eth0 addr exists, AP mode not started
20210509 155556 worker: wlan0 address not assigned
20210509 155556 worker: Pi integrated wlan0 power save disabled
20210509 155556 worker: -- Audio config
20210509 155556 worker: MPD conf updated
20210509 155556 worker: ALSA card number (0)
20210509 155556 worker: MPD audio output (HiFiBerry DAC+ Pro)
20210509 155556 worker: WARNING: No device found at MPD configured card 0
20210509 155556 worker: ALSA mixer name (Digital)
20210509 155556 worker: MPD volume control (software)
20210509 155556 worker: Hdwr volume controller exists
20210509 155556 worker: Max ALSA volume (100%)
20210509 155556 worker: ALSA loopback (Off)
20210509 155556 worker: Reset renderer active flags
20210509 155556 worker: CamillaDSP (off)
20210509 155556 worker: -- MPD startup
20210509 155557 worker: MPD started
20210509 155557 worker: MPD accepting connections
20210509 155557 worker: MPD output 1 ALSA Default (on)
20210509 155557 worker: MPD output 2 ALSA Bluetooth (off)
20210509 155557 worker: MPD output 3 HTTP Server (off)
20210509 155557 worker: MPD crossfade (off)
20210509 155557 worker: MPD ignore CUE files (yes)
20210509 155557 worker: -- Feature availability
20210509 155557 worker: Source select (available)
20210509 155557 worker: Source select (source: MPD)
20210509 155557 worker: Source select (output: HiFiBerry DAC+ Pro)
20210509 155557 worker: Bluetooth (available)
20210509 155557 worker: Airplay renderer (available)
20210509 155557 worker: Spotify renderer (available)
20210509 155557 worker: Squeezelite (available)
20210509 155557 worker: RoonBridge renderer (not installed)
20210509 155557 worker: UPnP renderer (available)
20210509 155557 worker: DLNA server (available)
20210509 155557 worker: UPnP browser (available)
20210509 155557 worker: GPIO button handler (available)
20210509 155557 worker: Stream recorder (n/a)
20210509 155557 worker: -- Music sources
20210509 155557 worker: USB sources (none attached)
20210509 155557 worker: NAS and UPnP sources (none configured)
20210509 155557 worker: -- Other
20210509 155557 worker: USB volume knob (Off)
20210509 155557 worker: USB auto-mounter (udisks-glue)
20210509 155557 worker: LED0 (On)
20210509 155557 worker: LED1 (On)
20210509 155557 worker: Saved MPD vol level (0)
20210509 155557 worker: Preamp volume level (0)
20210509 155557 worker: MPD volume level (100) restored
20210509 155557 worker: ALSA Digital volume (Invalid card number.)
20210509 155557 worker: Auto-play (Off)
20210509 155557 worker: Maintenance interval (3 hours)
20210509 155557 worker: Screen saver activation (Never)
20210509 155557 worker: Session permissions (OK)
20210509 155558 worker: Watchdog started
20210509 155558 worker: Ready