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azure-6.5/6.5.0-1007.7~22.04.1 kernel in -proposed solves the problem.
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to 'verification-failed-jammy-linux-azure-6.5'.


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** Tags added: kernel-spammed-jammy-linux-azure-6.5-v2 
verification-needed-jammy-linux-azure-6.5

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.5 in Ubuntu.
https://bugs.launchpad.net/bugs/2034506

Title:
  Audio device fails to function randomly on Intel MTL platform: No CPC
  match in the firmware file's manifest

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-6.5 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Invalid
Status in linux-oem-6.5 source package in Jammy:
  Fix Released
Status in linux source package in Mantic:
  Fix Released
Status in linux-oem-6.5 source package in Mantic:
  Invalid

Bug description:
  [SRU Justification]

  BugLink: https://bugs.launchpad.net/bugs/2034506

  [Impact]

  Audio device fails to function randomly on Intel MTL platform:
  ```
  sof-audio-pci-intel-mtl 0000:00:1f.3: no llp found, fall back to default HDA 
path
  sof-audio-pci-intel-mtl 0000:00:1f.3: COPIER (UUID: 
9BA00C83-CA12-4A83-943C-1FA2E82F9DDA): No CPC match in the firmware file's 
manifest (ibs/obs: 384/192)
  ```

  [Fix]

  Proposed fix in upstream commit 26ef47e5ba60 ("ASoC: SOF:
  ipc4-topology: Add module parameter to ignore the CPC value") that to
  allow ignoring CPC validation for current fw release.

  [Test Case]

  1. Boot into OS
  2. Check if the internal audio input & output devices work
  3. Let system enter suspend, then wake system back up
  4. Check if the audio input & output devices work
  5. Connect an external audio device (e.g. bluetooth headset, external 
monitor) and check if they work
  6. Disconnect the external audio device
  7. Check if the internal audio input & output devices work
  8. Reboot system
  9. Repeat above steps

  [Where problems could occur]

  While a 0 CPC value will force the DSP to run at full speed, this is
  going to impact power consumption until further fix being released for
  firmware.

  [Other Info]

  CPC checking landed to v6.5-rc1, so Mantic and oem-6.5 are nominated
  for fix.

  ========== original bug report ==========

  sof-audio-pci-intel-mtl 0000:00:1f.3: no llp found, fall back to default HDA 
path
  sof-audio-pci-intel-mtl 0000:00:1f.3: COPIER (UUID: 
9BA00C83-CA12-4A83-943C-1FA2E82F9DDA): No CPC match in the firmware file's 
manifest (ibs/obs: 384/192)

  Proposed fix in upstream commit 26ef47e5ba60 ("ASoC: SOF:
  ipc4-topology: Add module parameter to ignore the CPC value") that to
  allow ignoring CPC validation for current fw release.

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