title: How to fix No sound on Ubuntu 18.04?
body: <p>1) I've been using Ubuntu 18.04 with Windows 10 dual boot for some months now. Today suddenly my sound stopped working on Ubunutu. Activities -> Sound menu shows only "Dummy Output". All fine on Windows though.</p>
  
  <p>2) Output of lsmod is:</p>
  
  <pre><code>rohit@rohitUb18043LTS:~$ lsmod | grep snd_
  snd_seq_midi           20480  0
  snd_seq_midi_event     16384  1 snd_seq_midi
  snd_seq                69632  2 snd_seq_midi,snd_seq_midi_event
  snd_rawmidi            36864  1 snd_seq_midi
  snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
  snd_soc_dmic           16384  0
  snd_hda_codec_realtek   118784  0
  snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
  ledtrig_audio          16384  2 snd_hda_codec_generic,snd_hda_codec_realtek
  snd_soc_hdac_hdmi      32768  0
  snd_sof_intel_hda_common    73728  1 sof_pci_dev
  snd_soc_hdac_hda       24576  1 snd_sof_intel_hda_common
  snd_sof_intel_hda      20480  1 snd_sof_intel_hda_common
  snd_sof_intel_byt      24576  1 sof_pci_dev
  snd_sof_intel_ipc      20480  1 snd_sof_intel_byt
  snd_sof                98304  4 snd_sof_intel_hda_common,snd_sof_intel_byt,snd_sof_intel_ipc,sof_pci_dev
  snd_sof_xtensa_dsp     16384  1 sof_pci_dev
  snd_hda_ext_core       28672  4 snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_hdac_hda,snd_sof_intel_hda
  snd_soc_acpi_intel_match    32768  2 snd_sof_intel_hda_common,sof_pci_dev
  snd_soc_acpi           16384  2 snd_soc_acpi_intel_match,sof_pci_dev
  snd_soc_core          237568  5 snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_hdac_hda,snd_soc_dmic
  snd_compress           24576  1 snd_soc_core
  ac97_bus               16384  1 snd_soc_core
  snd_pcm_dmaengine      16384  1 snd_soc_core
  snd_hda_codec_hdmi     57344  1
  snd_hda_intel          53248  2
  snd_intel_nhlt         20480  1 snd_hda_intel
  snd_hda_codec         131072  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
  snd_hda_core           90112  10 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_hdac_hda,snd_sof_intel_hda
  snd_hwdep              20480  1 snd_hda_codec
  snd_pcm               102400  10 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_core,snd_hda_core,snd_pcm_dmaengine
  snd_timer              36864  2 snd_seq,snd_pcm
  snd                    86016  17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
  rohit@rohitUb18043LTS:~$
  </code></pre>
  
  <p>3) I installed all updates from Software updater but no luck.</p>
  
  <p>4) No change by using: sudo alsa force-reload</p>
  
  <p>5) Looking around, found this thread: <a href="https://askubuntu.com/questions/1059619/sound-card-shown-as-dummy-output-in-ubuntu-18-04">https://askubuntu.com/questions/1059619/sound-card-shown-as-dummy-output-in-ubuntu-18-04</a> . User says found the "active profile was off" and links to a solution on this forum (<a href="https://forums.linuxmint.com/viewtopic.php?t=268499" rel="noreferrer">https://forums.linuxmint.com/viewtopic.php?t=268499</a>). I am pasting the output of the four commands as per that link:</p>
  
  <pre><code>rohit@rohitUb18043LTS:~$ sudo fuser -v /dev/snd/*
  [sudo] password for rohit: 
                       USER        PID ACCESS COMMAND
  /dev/snd/controlC0:  gdm        1505 F.... pulseaudio
                       rohit      1878 F.... pulseaudio
  rohit@rohitUb18043LTS:~$ pacmd list-cards
  1 card(s) available.
      index: 0
      name: &lt;alsa_card.pci-0000_01_00.1&gt;
      driver: &lt;module-alsa-card.c&gt;
      owner module: 7
      properties:
          alsa.card = "0"
          alsa.card_name = "HDA NVidia"
          alsa.long_card_name = "HDA NVidia at 0xb4000000 irq 17"
          alsa.driver_name = "snd_hda_intel"
          device.bus_path = "pci-0000:01:00.1"
          sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0"
          device.bus = "pci"
          device.vendor.id = "10de"
          device.vendor.name = "NVIDIA Corporation"
          device.product.id = "0fb9"
          device.product.name = "GP107GL High Definition Audio Controller"
          device.string = "0"
          device.description = "GP107GL High Definition Audio Controller"
          module-udev-detect.discovered = "1"
          device.icon_name = "audio-card-pci"
      profiles:
          output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: no)
          output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: no)
          output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: no)
          off: Off (priority 0, available: unknown)
      active profile: &lt;off&gt;
      ports:
          hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
              properties:
                  device.icon_name = "video-display"
  rohit@rohitUb18043LTS:~$ pacmd list-sinks
  1 sink(s) available.
    * index: 0
      name: &lt;auto_null&gt;
      driver: &lt;module-null-sink.c&gt;
      flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
      state: SUSPENDED
      suspend cause: IDLE 
      priority: 1000
      volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
              balance 0,00
      base volume: 65536 / 100% / 0,00 dB
      volume steps: 65537
      muted: no
      current latency: 0,00 ms
      max request: 344 KiB
      max rewind: 344 KiB
      monitor source: 0
      sample spec: s16le 2ch 44100Hz
      channel map: front-left,front-right
                   Stereo
      used by: 0
      linked by: 0
      configured latency: 0,00 ms; range is 0,50 .. 2000,00 ms
      module: 15
      properties:
          device.description = "Dummy Output"
          device.class = "abstract"
          device.icon_name = "audio-card"
  rohit@rohitUb18043LTS:~$ pacmd list-sink-inputs
  0 sink input(s) available.
  rohit@rohitUb18043LTS:~$
  </code></pre>
  
  <p>6) I tried the suggested command but it says "No such profile".</p>
  
  <pre><code>rohit@rohitUb18043LTS:~$ pacmd set-card-profile alsa_card.pci-0000_01_00.1 output:analog-stereo+input:analog-stereo
  No such profile: output:analog-stereo+input:analog-stereo
  rohit@rohitUb18043LTS:~$
  </code></pre>
  
  <p>Please help - how do I proceed?</p>