This bug is awaiting verification that the linux-aws/5.15.0-1034.38
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-jammy' to 'verification-done-jammy'. If the
problem still exists, change the tag 'verification-needed-jammy' to
'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-aws

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https://bugs.launchpad.net/bugs/2006077

Title:
  Fix the ACPI _CPC not found error from kernel dmesg on some dynamic
  SSDT table loaded firmwares

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Fix Released

Bug description:
  [Impact]
  Some machines which have dynamically loaded SSDT tables, will not be loaded 
and get the CPPC not worked.

  [Fix]
  Fix the regression by some load supports for CPPC from an SSDT dynamically 
when _OSC reports CPPC v2. And make the "[\_SB.PR00._CPC], AE_NOT_FOUND" gone.

  [Test]
  Verified all the OEM dynamic table loaded or the "[\_SB.PR00._CPC], 
AE_NOT_FOUND" error exist or not on demesg .

  [Where problems could occur]
  Low risk, It only helps to CPPC support loaded.

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