Hello,

I most of the time jsut read/follow this thread as my testing knowledge
is limited. For a whilt things seem to have gotten better, but with
latest Kernel update on Arch (6.17.2-arch1-1) I now nearly everytime
have low CPU frueq 5xx MHz or 1.1 GHz as max. After a normal
suspend/resume cycle when plugged!

Have HP 845 G10 and EndeavourOS (Arch) all most up to date.

Just curious if anyone else has this.

I will run my laptop on 6.12 LTS Kernel for a while to see if it gets
better.

BR and thanks for al the efforts or Mario and the testers :)


Can we somehow get HP to do "their job"? Write emails, sign letters, ...?

BR
Peter

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https://bugs.launchpad.net/bugs/2088733

Title:
  low CPU frequency after wake up AMD Ryzen

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After wake up I can see at least once a week issue with CPU frequency
  not going up. When running:

  $ watch lscpu -e=CPU,MHZ

  standard output looks like:

  CPU       MHZ
    0  400.0000
    1 1383.2480
    2  400.0000
    3  400.0000
    4  400.0000
    5 2699.7561
    6 1288.0500
    7  400.0000
    8  400.0000
    9  400.0000
   10  400.0000
   11  400.0000
   12 3244.0720
   13  400.0000
   14  400.0000
   15 1295.9050

  while when the issue occurs, I can't see 600 Mhz or higher values in
  the same graph. Which also means that response time of computer is
  much lower and everything feels lazy.

  Restart fixes the issue or plug power cable off and in again.

  My CPU is AMD Ryzen™ 7 PRO 7840HS w/ Radeon™ 780M Graphics × 16
  My kernel version: 6.8.0-48-generic #48-Ubuntu SMP PREEMPT_DYNAMIC Fri Sep 27 
14:04:52 UTC 2024
  OS version: Ubuntu 24.04.1 LTS
  My laptop: HP ZBook Firefly 14 inch G10 A Mobile Workstation PC

  I know about one more person with same machine type with the issue and
  there is also this question on askubuntu which says there is third
  person with this issue.

  https://askubuntu.com/questions/1531956/cpu-too-slow-after-waking-up-
  in-ubuntu-24-04-1

  This bug looks pretty similar however should be fixed already, so creating 
new one
  https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.19/+bug/2007718

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