From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C07F32264A8 for ; Fri, 27 Feb 2026 10:16:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772187410; cv=none; b=Va55p43w6pudVW+U/m3O+uOrhqjb9CsBOxvbXMpa3UtuMuL3sATk/lZXKTsDWQAShj5+VK1RtrmuUMJYvBcn5poj8KYiQ05kajJdWFMdwfzTiUzK+y0QKZcXxXiM3j1EokkNva5zwMmMu43DhflQw+s5Lff45/Zrl7vdLeRuHHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772187410; c=relaxed/simple; bh=5xjCRvGS5eg5Zxf03uTawDZ7ml0jPIWHg1M3w9wyIw0=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=nV8iq3EWPS1AaVXI06Q2mD6elOUaLLXrbd7Fnz1QprXlI1GFZAEgDXQ79AvtU3+no3XUxX9hMQg0Xujia7Wm/1uher1zfV5vtSnUtNcXAG22Nf6LPzSaFue6Fda+S0UFSFGdHf42f3CKy+3aDlCRMsxvWflFGRn6KL1GlEaAixU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=N3qG9NOd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="N3qG9NOd" Received: by smtp.kernel.org (Postfix) with ESMTPS id 646C0C19421 for ; Fri, 27 Feb 2026 10:16:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772187410; bh=5xjCRvGS5eg5Zxf03uTawDZ7ml0jPIWHg1M3w9wyIw0=; h=From:To:Subject:Date:From; b=N3qG9NOdIVylKC2UwSWR8+EZ3q6aVGeanlHbI9BK23TzvPGURJfEouzsVOjTUlFBA dBriqbEYOLfAkRuobK3LAPqwRswEbgzbdy/KV7tRQTOaeBvS3NQ+vS6fg8taXtHX2U 8ipzgVVu/+Y/ziWM7SHGo5wwPbwsZaq46HZjeYL6HmzRHzvUqxTYiZ7Cqi8vNYm8s4 EuZiU3KBxIamrfh5YryDW+seUEctV6ySO4siVGrI6vR8Ibl6Oj+jvm9IOowzEY+KBe srNIE2hzwmqHF32ZnDYMyfvIMa4Y1PouXoQK0GdMNKqz6N9L9mARGbbpSfPMUbFZep ScbqLvDGB17pA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 55415C3279F; Fri, 27 Feb 2026 10:16:50 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 221149] New: hp-wmi: Fan control fails and RPM always reads as zero on HP OMEN 16-wf1xxx (Board 8C76) Date: Fri, 27 Feb 2026 10:16:49 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Platform_x86 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: Jie7172585@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221149 Bug ID: 221149 Summary: hp-wmi: Fan control fails and RPM always reads as zero on HP OMEN 16-wf1xxx (Board 8C76) Product: Drivers Version: 2.5 Hardware: Intel OS: Linux Status: NEW Severity: normal Priority: P3 Component: Platform_x86 Assignee: drivers_platform_x86@kernel-bugs.osdl.org Reporter: Jie7172585@gmail.com Regression: No Created attachment 309484 --> https://bugzilla.kernel.org/attachment.cgi?id=3D309484&action=3Dedit log of OMEN Gaming Hub I am opening this new bug report to track the fan control issues for the HP OMEN 16-wf1xxx (Board ID: 8C76) The primary issue is that the manual fan control completely fails, and the = fan speed is always reported as zero.=20 Description: While the hp-wmi driver successfully exposes the hwmon nodes, attempting to write to the pwm1_enable node (e.g., setting it to 0 for max fan speed) has= no physical effect on the fans. Furthermore, reading the fan speed (e.g., cat fan1_input) constantly returns 0 RPM, even when the fans are physically spinning under heavy CPU/GPU load. The commands seem to be rejected at the firmware level. Errors from dmesg: The underlying WMI communication is failing, producing the following ACPI errors in dmesg when trying to query/set thermal states: hp_wmi: query 0x4c returned error 0x6 ACPI BIOS Error (bug): Attempt to CreateField of length zero (20251212/dsopcode-133) ACPI Error: Aborting method \_SB.WMID.WQBC due to previous error (AE_AML_OPERAND_VALUE) ACPI Error: Aborting method \_SB.WMID.WQBE due to previous error (AE_AML_OPERAND_VALUE) ACPI Error: Aborting method \_SB.WMID.WHCM due to previous error (AE_AML_OPERAND_VALUE) ACPI Error: Aborting method \_SB.WMID.WMAA due to previous error (AE_AML_OPERAND_VALUE) Hardware details: - Laptop: OMEN by HP Gaming Laptop 16-wf1xxx - DMI Board ID: 8C76 - BIOS Version: F.15 EC dump: $ sudo xxd /sys/kernel/debug/ec/ec0/io 00000000: 0000 0000 0001 48aa 0f84 fa71 0ffa 1c01 ......H....q.... 00000010: 0129 251e ff00 ffff ffff ffff 00fa ac24 .)%............$ 00000020: 0000 0000 0000 f900 350f 2000 0036 4b59 ........5. ..6KY 00000030: 5844 304b 3831 4a38 324a 5400 0100 00ff XD0K81J82JT..... 00000040: ffff ff01 00ff ffff ff4c 494f 4e00 0000 .........LION... 00000050: 0009 ffff 3100 000f 4301 2d41 0000 0000 ....1...C.-A.... 00000060: 0080 1620 3333 332d 4143 2d31 322d 4100 ... 333-AC-12-A. 00000070: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 00000080: 0000 0000 0b00 0000 0000 0000 0000 0000 ................ 00000090: 3333 332d 4143 2d31 3257 4b30 3630 3833 333-AC-12WK06083 000000a0: 0001 00d8 4500 004c 0000 0008 642a 0078 ....E..L....d*.x 000000b0: 4d4d 3c5b 4100 3232 008c 0800 f242 1111 MM<[A.22.....B.. 000000c0: 0000 7e1b 8505 0c32 3c2d 6c20 7e1b 6421 ..~....2<-l ~.d! 000000d0: 0000 0000 0000 7e1b bf02 5b11 0000 e000 ......~...[..... 000000e0: 0000 00af 10ad 10af 1000 0083 430b 0080 ............C... 000000f0: 0009 0200 0000 0000 5000 0061 580b 0000 ........P..aX... I have attached the OMEN Gaming Hub logs from my Windows partition to this = bug report. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=