[Bug 218805] New: CPU stuck to low frequency after resume from sleep

[Bug 218805] New: CPU stuck to low frequency after resume from sleep

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=218805

            Bug ID: 218805
           Summary: CPU stuck to low frequency after resume from sleep
           Product: Power Management
           Version: 2.5
          Hardware: Intel
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpufreq
          Assignee: linux-pm@vger.kernel.org
          Reporter: bogdan.nicolae@gmail.com
        Regression: No

Kernel version: 6.8.7 #1 SMP PREEMPT_DYNAMIC

Problem: On initial boot, everything works fine. After suspend-resume,
intel_cpufreq policy is stuck well below hardware limits (1.32 Ghz instead of
3.30 Ghz), as seen below. Manually trying to raise the upper limit is not
possible.

analyzing CPU 5:
  driver: intel_cpufreq
  CPUs which run at the same hardware frequency: 5
  CPUs which need to have their frequency coordinated by software: 5
  maximum transition latency: 20.0 us
  hardware limits: 1.20 GHz - 3.30 GHz
  available cpufreq governors: conservative ondemand userspace powersave
performance schedutil
  current policy: frequency should be within 1.20 GHz and 1.32 GHz.
                  The governor "schedutil" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 1.10 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes
    25500 MHz max turbo 4 active cores
    25500 MHz max turbo 3 active cores
    25500 MHz max turbo 2 active cores
    25500 MHz max turbo 1 active cores

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[Bug 218805] CPU stuck to low frequency after resume from sleep

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=218805

--- Comment #1 from Artem S. Tashkinov (aros@gmx.com) ---
What's your CPU precisely?

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[Bug 218805] CPU stuck to low frequency after resume from sleep

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=218805

--- Comment #2 from Artem S. Tashkinov (aros@gmx.com) ---
Could you try disabling/enabling turbo boost? I've seen bug reports where
people say it helped them.

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[Bug 218805] CPU stuck to low frequency after resume from sleep

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=218805

Artem S. Tashkinov (aros@gmx.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |OBSOLETE

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