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Fri, 6 Nov 2026 12:51:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793969474; bh=9K5N3/LuOJSM032Cm8lJN0MkvWWUfYAeMvXgiw/jj14=; h=From:To:Subject:Date; b=mVBB/Olu9rScMHDpDfIfx73Z8suvu6XA8WW9Qe3PfGuPPrtizfqASsh732LYcjFX2 tfuVk8Zzjq2unul/9mnYjxWSw4OLiTTIdtcbmFBGJceP3LseZSK0qQDTKrxTyGiWQs wi+XU9UOfP4+tyLZKCcXdD9QLon79rrLmWUc7lcRPGgtH9aAdkPFqcJH//QgYf/PpZ lZupL24KmYWPFVrv0V1qC4PKHz4g0VcpdEf7bLJDtUB1z9qqbIS7NptVDZguGzUwn4 Fg4emks7YFBTT6wsJn8Yx35lFCHWG1P/xapE4JNKnQi3Xv3ts6BR3t344ggtLH1+zs f6aoNDECCKpFw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 14001C4160E; Fri, 6 Nov 2026 12:51:14 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 222240] New: acer_wmi: Nitro ANV15-52 fails platform_profile read/write on newer BIOS versions Date: Fri, 06 Nov 2026 12:51:13 +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: nghiant@mailbox.org 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 X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D222240 Bug ID: 222240 Summary: acer_wmi: Nitro ANV15-52 fails platform_profile read/write on newer BIOS versions Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: Platform_x86 Assignee: drivers_platform_x86@kernel-bugs.osdl.org Reporter: nghiant@mailbox.org Regression: No Created attachment 311391 --> https://bugzilla.kernel.org/attachment.cgi?id=3D311391&action=3Dedit ACPI Table Dump On Acer Nitro ANV15-52, reading/writing to `/sys/firmware/acpi/platform_profile` produce `Input/output error` ``` =E2=9D=AF cat /sys/module/acer_wmi/parameters/predator_v4 Y =E2=9D=AF cat /sys/firmware/acpi/platform_profile_choices low-power quiet balanced balanced-performance performance =E2=9D=AF cat /sys/firmware/acpi/platform_profile cat: /sys/firmware/acpi/platform_profile: Input/output error ``` --=20 You may reply to this email to add a comment. 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