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 64531400E19 for ; Fri, 5 Jun 2026 18:58:31 +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=1780685911; cv=none; b=Q22SEHerF+kcPsFutYmMooHFwwtiuarhkDVd0n84mWmuSBMXTxtYmcXnRO1ucX3VdG8c6ZrTZ/TUgRRxzUtMWS2qAFLlgrSJUzearWKfSWRz9LoSkJCDGj0Fr8JU7wYvREox5M2EuJ6NcR/X5IAIhdRerpUaomrM//9c8Ta0/vQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780685911; c=relaxed/simple; bh=qXHDq6wAS9dc3NrBxBsJpf3rGg6Pbv/LJD692Hvo4QM=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=bROSILJftM8/x959S6+p/3/IxTiiXzuE4Mnv9mD+46JLfVFrr5SHDUwW8Sy9wn4tSRqqqhn/GdGrgi9kNf5s0A30am+ZGZO6iSru+qxt7nTqKCWzvmL1OoX/mmZYlGt5PdZ8fFmLWAiBeQ8l25NSxY43uy7Ypg9sqJ/VP9ur+CA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=M1k6iBIZ; 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="M1k6iBIZ" Received: by smtp.kernel.org (Postfix) with ESMTPS id C98CEC2BCC7 for ; Fri, 5 Jun 2026 18:58:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780685910; bh=qXHDq6wAS9dc3NrBxBsJpf3rGg6Pbv/LJD692Hvo4QM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=M1k6iBIZ/9Q3i1esEz5TT6mB7npUwLxBKBAusZ+ywG28gNPHulBPQviohhMv+m292 nWtME1jKEwYmZOf5klIjt8YpipfHTUJ08+Vj8ZL8g1polHyj7InO4WuBG4xJh6FOYU J9X1IiyUZDMoSmENssqIJBLKdMfUOY5GujZU5siHyLdjqpt91/AMF0WZHE/Zc+ggYw lCe9c95/vvsTECfVXHeLK4O1fWV6WuiIkIvZ+OZQ4sVOzjo3e+1JOmRObybAX/DvXl S+3gR4ZOtG/6CfHBA0ZkV88BXktiP3yrugiwCp1NHhRX/oktAb43uAC4ZtHEfCi+t9 lLoFtlxrDCuUg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id A50F1C3279F; Fri, 5 Jun 2026 18:58:30 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 221583] Lenovo 82KU: keyboard backlight works via Fn+Space but no kbd_backlight LED device exposed Date: Fri, 05 Jun 2026 18:58:30 +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: george.stafilidis@proton.me 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=3D221583 --- Comment #24 from George (george.stafilidis@proton.me) --- Method (KBLC, 1, Serialized) { Name (ICMD, Zero) Name (IDTL, Zero) Name (IDTH, Zero) Name (RETD, Zero) ICMD =3D (Arg0 & 0x0F) IDTL =3D (Arg0 & 0xFFF0) IDTL >>=3D 0x04 IDTH =3D (Arg0 & 0xFFFF0000) IDTH >>=3D 0x10 RETD |=3D One Switch (ToInteger (ICMD)) { Case (One) { Local0 =3D 0x02 RETD |=3D Local0 } Case (0x02) { Switch (ToInteger (IDTL)) { Case (One) { Local0 =3D KLEN RETD |=3D Local0 } Case (0x02) { Local0 =3D KLEN RETD |=3D Local0 } } } Case (0x03) { Switch (ToInteger (IDTL)) { Case (One) { Local0 =3D (IDTH & 0x03) KLEN =3D Local0 RETD |=3D Local0 } Case (0x02) { KLEN =3D IDTH RETD |=3D KLEN } } } } Return (ToInteger (RETD)) } i think this is what you asking me to share with you. I think it is this because I took a screenshot of what it did. The OSD notification when i app= lied this version did not show up at all and only two options were showing in Qu= ick Settings: Off and High but both options were working when I clicked them (b= ut no osd). I think this is where Qwen got confused. --=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.=