[Bug 221150] New: [BUG] hp-wmi: OMEN 16-k0xxx (board 8A4D) – verification of platform_profile and EC register behavior

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221150

            Bug ID: 221150
           Summary: [BUG] hp-wmi: OMEN 16-k0xxx (board 8A4D) –
                    verification of platform_profile and EC register
                    behavior
           Product: Drivers
           Version: 2.5
          Hardware: Intel
                OS: Linux
            Status: NEW
          Severity: low
          Priority: P3
         Component: Platform_x86
          Assignee: drivers_platform_x86@kernel-bugs.osdl.org
          Reporter: qwqgong@gmail.com
        Regression: No

Created attachment 309485
  --> https://bugzilla.kernel.org/attachment.cgi?id=309485&action=edit
EC dump,dmesg_full,acpidump.

Hardware:
   Laptop: HP OMEN Laptop 16-k0xxx (Omen 8 Pro)
   Board ID: 8A4D
   CPU: Intel Core i7-12700H
   BIOS Version: F.28 (2025-08-13)
Software:
   Distro:  CachyOS
   Kernel: 6.19.3-2-cachyos
Problem summary:
   The hp-wmi driver registers correctly as a platform profile handler on this
board (8A4D). I am providing baseline diagnostics including an EC dump and
dmesg logs to help maintainers verify if the current WMI query implementation
correctly maps to this specific model's thermal and performance profiles.
Actual Results:
   The platform_profile file accepts the input, but there is no change in fan
RPM or thermal management behavior. No audible fan ramp is observed even when
"performance" is selected.
❯ cat /sys/firmware/acpi/platform_profile_choices
cool quiet balanced performance
Expected Results:
   Switching to "performance" should trigger the firmware's high-performance
thermal map and increase fan aggressiveness, similar to the "Performance Mode"
in the OMEN Command Center on Windows.

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