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I'm having a problem with pulseaudio. My machine crashed, and when I rebooted and ran pavucontrol, I got a "Connection Failed: Connection refused" dialog.

When I run pulseaudio --log-level=info --log-target=stderr from the command line, I get the following output:

[...]
I: alsa-util.c: Error opening PCM device front:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:1
I: alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device front:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory
I: card.c: Created 0 "alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio"
I: alsa-sink.c: Successfully opened device front:1.
I: alsa-sink.c: Selected mapping 'Analog Stereo' (analog-stereo).
I: alsa-sink.c: Successfully enabled mmap() mode.
I: alsa-sink.c: Successfully enabled timer-based scheduling mode.
I: (alsa-lib)control.c: Invalid CTL front:1
I: alsa-mixer.c: Unable to attach to mixer front:1: No such file or directory
I: alsa-mixer.c: Successfully attached to mixer 'hw:1'
W: alsa-mixer.c: Your kernel driver is broken: it reports a volume range from 0.00 dB to 0.00 dB which makes no sense.
I: module-device-restore.c: Restoring volume for sink alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo.
I: sink.c: Created sink 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right
I: sink.c:     alsa.resolution_bits = "16"
I: sink.c:     device.api = "alsa"
I: sink.c:     device.class = "sound"
I: sink.c:     alsa.class = "generic"
I: sink.c:     alsa.subclass = "generic-mix"
I: sink.c:     alsa.name = "USB Audio"
I: sink.c:     alsa.id = "USB Audio"
I: sink.c:     alsa.subdevice = "0"
I: sink.c:     alsa.subdevice_name = "subdevice #0"
I: sink.c:     alsa.device = "0"
I: sink.c:     alsa.card = "1"
I: sink.c:     alsa.card_name = "DigiHug USB Audio"
I: sink.c:     alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:00:1a.0-1.2, full speed"
I: sink.c:     alsa.driver_name = "snd_usb_audio"
I: sink.c:     device.bus_path = "pci-0000:00:1a.0-usb-0:1.2:1.1"
I: sink.c:     sysfs.path = "/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1"
I: sink.c:     udev.id = "usb-FiiO_DigiHug_USB_Audio-01-Audio"
I: sink.c:     device.bus = "usb"
I: sink.c:     device.vendor.id = "1852"
I: sink.c:     device.vendor.name = "GYROCOM C&C Co., LTD"
I: sink.c:     device.product.id = "7022"
I: sink.c:     device.product.name = "DigiHug_USB_Audio"
I: sink.c:     device.serial = "FiiO_DigiHug_USB_Audio"
I: sink.c:     device.string = "front:1"
I: sink.c:     device.buffering.buffer_size = "352800"
I: sink.c:     device.buffering.fragment_size = "176400"
I: sink.c:     device.access_mode = "mmap+timer"
I: sink.c:     device.profile.name = "analog-stereo"
I: sink.c:     device.profile.description = "Analog Stereo"
I: sink.c:     device.description = "DigiHug_USB_Audio Analog Stereo"
I: sink.c:     alsa.mixer_name = "USB Mixer"
I: sink.c:     alsa.components = "USB1852:7022"
I: sink.c:     module-udev-detect.discovered = "1"
I: sink.c:     device.icon_name = "audio-card-usb"
I: source.c: Created source 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo.monitor" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right
I: source.c:     device.description = "Monitor of DigiHug_USB_Audio Analog Stereo"
I: source.c:     device.class = "monitor"
I: source.c:     alsa.card = "1"
I: source.c:     alsa.card_name = "DigiHug USB Audio"
I: source.c:     alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:00:1a.0-1.2, full speed"
I: source.c:     alsa.driver_name = "snd_usb_audio"
I: source.c:     device.bus_path = "pci-0000:00:1a.0-usb-0:1.2:1.1"
I: source.c:     sysfs.path = "/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1"
I: source.c:     udev.id = "usb-FiiO_DigiHug_USB_Audio-01-Audio"
I: source.c:     device.bus = "usb"
I: source.c:     device.vendor.id = "1852"
I: source.c:     device.vendor.name = "GYROCOM C&C Co., LTD"
I: source.c:     device.product.id = "7022"
I: source.c:     device.product.name = "DigiHug_USB_Audio"
I: source.c:     device.serial = "FiiO_DigiHug_USB_Audio"
I: source.c:     device.string = "1"
I: source.c:     module-udev-detect.discovered = "1"
I: source.c:     device.icon_name = "audio-card-usb"
I: alsa-sink.c: Using 2.0 fragments of size 176400 bytes (1000.00ms), buffer size is 352800 bytes (2000.00ms)
I: alsa-sink.c: Time scheduling watermark is 20.00ms
I: alsa-sink.c: Hardware volume ranges from 0 to 110.
I: alsa-sink.c: Using hardware volume control. Hardware dB scale not supported.
I: alsa-sink.c: Using hardware mute control.
I: core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 5.
I: alsa-sink.c: Starting playback.
I: module.c: Loaded "module-alsa-card" (index: #4; argument: "device_id="1" name="usb-FiiO_DigiHug_USB_Audio-01-Audio" card_name="alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"").
I: module-udev-detect.c: Card /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio) module loaded.
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device front:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device front:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device front:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device front:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device front:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device hw:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2)
I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM a52:2
I: alsa-util.c: Error opening PCM device a52:2: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:2
I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:2
I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:2
I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:2
I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory
I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2'
I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory
I: (alsa-lib)conf.c: Evaluate error: No such file or directory
I: (alsa-lib)pcm.c: Unknown PCM hdmi:2
I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory
I: alsa-util.c: Device hw:2 doesn't support 44100 Hz, changed to 8000 Hz.
I: alsa-util.c: Failed to set hardware parameters on plug:front:2: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:hw:2: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:2: Invalid argument
I: alsa-util.c: Failed to set hardware parameters on plug:iec958:2: Invalid argument
I: module-card-restore.c: Restoring profile for card alsa_card.usb-046d_08d7-01-U0x46d0x8d7.
I: card.c: Created 1 "alsa_card.usb-046d_08d7-01-U0x46d0x8d7"
I: module.c: Loaded "module-alsa-card" (index: #5; argument: "device_id="2" name="usb-046d_08d7-01-U0x46d0x8d7" card_name="alsa_card.usb-046d_08d7-01-U0x46d0x8d7" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"").
I: module-udev-detect.c: Card /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.1/sound/card2 (alsa_card.usb-046d_08d7-01-U0x46d0x8d7) module loaded.
I: module-udev-detect.c: Found 3 cards.
I: module.c: Loaded "module-udev-detect" (index: #6; argument: "").
I: module.c: Loaded "module-esound-protocol-unix" (index: #7; argument: "").
I: module.c: Loaded "module-native-protocol-unix" (index: #8; argument: "").
I: module-default-device-restore.c: Saved default sink 'alsa_output.pci-0000_00_1b.0.analog-surround-41' not existant, not restoring default sink setting.
I: module-default-device-restore.c: Saved default source 'alsa_output.pci-0000_00_1b.0.analog-surround-41.monitor' not existant, not restoring default source setting.
I: module.c: Loaded "module-default-device-restore" (index: #9; argument: "").
I: module.c: Loaded "module-rescue-streams" (index: #10; argument: "").
I: module.c: Loaded "module-always-sink" (index: #11; argument: "").
I: module.c: Loaded "module-intended-roles" (index: #12; argument: "").
I: module.c: Loaded "module-suspend-on-idle" (index: #13; argument: "").
I: client.c: Created 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session2"
I: module.c: Loaded "module-console-kit" (index: #14; argument: "").
I: module.c: Loaded "module-position-event-sounds" (index: #15; argument: "").
I: module.c: Loaded "module-cork-music-on-phone" (index: #16; argument: "").
E: module.c: Failed to open module "module-combine-sink": file not found
E: main.c: Module load failed.
E: main.c: Failed to initialize daemon.
I: module.c: Unloading "module-device-restore" (index: #0).
I: module.c: Unloaded "module-device-restore" (index: #0).
I: module.c: Unloading "module-stream-restore" (index: #1).
I: module.c: Unloaded "module-stream-restore" (index: #1).
I: module.c: Unloading "module-card-restore" (index: #2).
I: module.c: Unloaded "module-card-restore" (index: #2).
I: module.c: Unloading "module-augment-properties" (index: #3).
I: module.c: Unloaded "module-augment-properties" (index: #3).
I: module.c: Unloading "module-alsa-card" (index: #4).
I: sink.c: Freeing sink 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo"
I: source.c: Freeing source 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo.monitor"
I: card.c: Freed 0 "alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio"
I: module.c: Unloaded "module-alsa-card" (index: #4).
I: module.c: Unloading "module-alsa-card" (index: #5).
I: card.c: Freed 1 "alsa_card.usb-046d_08d7-01-U0x46d0x8d7"
I: module.c: Unloaded "module-alsa-card" (index: #5).
I: module.c: Unloading "module-udev-detect" (index: #6).
I: module.c: Unloaded "module-udev-detect" (index: #6).
I: module.c: Unloading "module-esound-protocol-unix" (index: #7).
I: module.c: Unloaded "module-esound-protocol-unix" (index: #7).
I: module.c: Unloading "module-native-protocol-unix" (index: #8).
I: module.c: Unloaded "module-native-protocol-unix" (index: #8).
I: module.c: Unloading "module-default-device-restore" (index: #9).
I: module.c: Unloaded "module-default-device-restore" (index: #9).
I: module.c: Unloading "module-rescue-streams" (index: #10).
I: module.c: Unloaded "module-rescue-streams" (index: #10).
I: module.c: Unloading "module-always-sink" (index: #11).
I: module.c: Unloaded "module-always-sink" (index: #11).
I: module.c: Unloading "module-intended-roles" (index: #12).
I: module.c: Unloaded "module-intended-roles" (index: #12).
I: module.c: Unloading "module-suspend-on-idle" (index: #13).
I: module.c: Unloaded "module-suspend-on-idle" (index: #13).
I: module.c: Unloading "module-console-kit" (index: #14).
I: client.c: Freed 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session2"
I: module.c: Unloaded "module-console-kit" (index: #14).
I: module.c: Unloading "module-position-event-sounds" (index: #15).
I: module.c: Unloaded "module-position-event-sounds" (index: #15).
I: module.c: Unloading "module-cork-music-on-phone" (index: #16).
I: module.c: Unloaded "module-cork-music-on-phone" (index: #16).
I: main.c: Daemon terminated.

I believe the relevant part is this:

E: module.c: Failed to open module "module-combine-sink": file not found
E: main.c: Module load failed.
E: main.c: Failed to initialize daemon.

I tried uninstalling and reinstalling pulseaudio, I tried to find a way to install module-combine-sink. Nothing worked. I'm on a Debian Squeeze 32-bit machine.

What can I do to fix this?

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2 Answers 2

up vote 2 down vote accepted

I had a similar issue (except with "module-cork-music-on-phone" - my Wheezy install just had this on 2012-06-02).

The problem is what the error message says - pulseaudio is trying to load a module that's not present.

Edit the ~/.pulse/default.pa and/or /etc/pulse/default.pa and comment out the offending "load module" lines with a # and the problem goes away.

Downgrading the offending package(s) is another possible fix if the above doesn't work.

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Looks like the device drivers are not loading for the sound card.

Try re-configuring alsa, alsactl init and reboot.

EDIT: From your reply it sounds like the kernel package was updated before the crash, and now the new kernel or alsa-base package is giving you problems. There are a bunch of open bugs specific to Intel HD Audio driver.

My recommendation is to reboot and select the previous kernel. You may need to do run altactl init again, but it should work.

The other option (which is what I would do) is install the official driver from RealTek.

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# sudo alsactl init Unknown hardware: "HDA-Intel" "Realtek ALC889" "HDA:10ec0889,14627588,00100004" "0x1462" "0x7588" Hardware is initialized using a guess method –  Matt Alexander Mar 1 '12 at 15:14
    
Updated answer. I'm pretty sure you're running into updated driver issues. –  h0tw1r3 Mar 1 '12 at 19:32

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