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 AFBDC48F032 for ; Wed, 7 Oct 2026 11:51:48 +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=1791373908; cv=none; b=IEy4NvWZTT/tPHvOLDcL+mO2LtrfsIVgdHKmTcdysKcmXSn+W+GzY3hyD6HnCgwsyg9QmaLjTpxsKOWexnn/Aa9ATv9xX4YVpZbR6GCnboXvDJslcnhyIIksTCT7A6IBSCodWAWDS+aCqxI/JdxC0yHYsuhCHRsg7p5YXmUVJKE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791373908; c=relaxed/simple; bh=SlZPyRp6jqwat1UyMq2+HxQV0dKr6rC1FYDoydUX6Fk=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=TPnbEU3PNYoF/RsuO9bNa6K+Kff/aHd4cQhq+C00hY1Ym5/2mfN0CdG+wYJUUioms80tnSshqsDg/26434a4uatONaDR5I/E5I6Cnslpl73x86I3T/z86HQrSqavHom/4sDbS1nAOqw6YLrpHcII/+ygqYjyhhiFNbNGw7mSfgk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=B9NQVyOg; 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="B9NQVyOg" Received: by smtp.kernel.org (Postfix) with ESMTPS id 53840C2BCC7 for ; Wed, 7 Oct 2026 11:51:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1791373908; bh=SlZPyRp6jqwat1UyMq2+HxQV0dKr6rC1FYDoydUX6Fk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=B9NQVyOgJ+H5aV8C3UhLauCaIun1pF8aMZgO4Y3dabrF7Bm8kvdQCK2Hj0OF+dL8y 9J6hFhH/y7auSISLuCBW8mIQ2kbxNGYwzSCGs9qS/7RVECwJi5l4zuu2Hn62Qowgws 4ECePKVcTCJsNAnu+cpthozpqmBn5m6apcPgM2VRtJBzFN0Y1jhrCnMK40QlOyOSBd 1oAWAtjJEdx66k+LRz0diNFqEznzGcsGbx7mpfDq+kAuia8Qn560+VyYB1WSkB3zxP 7nprwHW5T342n4km16EDdW8lJd20PJEyDJVyAD56As28GxX2qv3sNXEaE9fjnvoUXo h1nlOvVVVv+kw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3EB21C4160E; Wed, 7 Oct 2026 11:51:48 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 222102] [ASUS Vivobook F1054ZA] Keyboard backlight missing/not working on Fedora 44 KDE - PixArt ASUP1200:00 controller Date: Wed, 07 Oct 2026 11:51:48 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed 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: roberto_comandatore_93@protonmail.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: Message-ID: In-Reply-To: References: 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=3D222102 --- Comment #1 from Roberto Comandatore (roberto_comandatore_93@protonmail.= com) --- Distribution: Fedora Linux 44 (KDE Plasma) Kernel version: 7.2.8-200.fc44.x86_64 Description of Problem: The keyboard backlight on the ASUS Vivobook F1054ZA does not turn on. The s= ysfs interface `asus::kbd_backlight` is completely missing from `/sys/class/leds= /`. The keyboard and touchpad are driven by a PixArt I2C-HID controller recogni= zed as `ASUP1200:00` (HID ID 093A:200A). The kernel correctly registers the keyboard functions via i2c-hid, but does not expose any LampArray or LED brightness interfaces. Attempts made: - Upgraded laptop BIOS to the latest version. - Tested OpenRGB and VRGB (devices not found because hidraw/sysfs endpoints= are missing). - Loaded i2c-dev and verified Intel SMBus i801 adapter is fully active. - Attempted to pass `acpi_osi=3D"Windows 2020"` and `i2c_hid.polling_mode= =3D0` in GRUB parameters, but the HID interface for LEDs remains hidden. I am attaching the acpidump, fastfetch summary, dmesg logs, and dmidecode details in a compressed archive. Cross-reference: Tracking this issue on ASUS-Linux GitLab at https://gitlab= .com --=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.=