This bug is awaiting verification that the linux-mtk/5.15.0-1030.34
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-linux-mtk' to 'verification-done-jammy-
linux-mtk'. If the problem still exists, change the tag 'verification-
needed-jammy-linux-mtk' to 'verification-failed-jammy-linux-mtk'.


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-mtk-v2 
verification-needed-jammy-linux-mtk

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https://bugs.launchpad.net/bugs/2008527

Title:
  [SRU]With "Performance per Watt (DAPC)" enabled in the BIOS, Bootup
  time is taking longer than expected

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Jammy:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released

Bug description:
  SRU Justification:

  [Impact]

  A Dell system that has a profile setting of "Performance Per Watt
  (DAPC)" enabled in the BIOS and running Ubuntu-22.04 does not boot
  into OS as quickly as expected.

  How reproducible:

  Steps to Reproduce:

  1. On the Dell system enable "Performance Per Watt (DAPC)" from BIOS.
  2. Install Ubuntu-22.04
  3. Boot into OS
  4. Check the bootup time

  Expected results:
  OS should boot normally and need to consume less bootup time

  [Fix]

  13fdbc8b8da6 cpufreq: ACPI: Defer setting boost MSRs

  [Test Plan]

  1. Set system profile as "Performance Per Watt (DAPC)" from BIOS setting
  2. Install Ubuntu-22.04
  3. Boot into OS
  4. Check the bootup time

  [Where problems could occur]

  Regression risk: low to medium.

  [Other Info]
  Jammy
  
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/lp_2008527_dapc

  Kinetic
  
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/kinetic/+ref/lp_2008527_dapc_kinetic

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