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 D31E95464D for ; Fri, 5 Jun 2026 18:23:51 +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=1780683831; cv=none; b=YCWMlM4mwEns54YqeOMU/UQi6tcq21xZDGC53kBNM/2a9KdvR2g1naeH3in6blBUE93H1uFJxKQit9sIEYBzlual8+sR458L2arcrIGDZwDPXh8mYpMyhMh8TgHM4aI4YGVcYeGnbX5kbpxW9FWi3bWIz0gzH31MP2etxrQK2h8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780683831; c=relaxed/simple; bh=/MkXdE8yCeKSxrWLB1gjkr0BEZSNSCT2i24B49nZrGg=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=RKQXM5nrjv/wUUpoE3eYmOtnwZS/zQVW4gOJQXBhuUpVkF1q61rL8wZ70jZir+UQ8aMy3iZBJ43ZLiPXSAwK3jywMkqfN8qLtBk+EdJ931rS5H66mzhP/VIFvkCcTQXHpX8mZ4g8clgxmmlUkBD0tkg6cEbrAeXzSa+IuNLrr3U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lZZoliaD; 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="lZZoliaD" Received: by smtp.kernel.org (Postfix) with ESMTPS id 5F7DCC2BCC4 for ; Fri, 5 Jun 2026 18:23:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780683831; bh=/MkXdE8yCeKSxrWLB1gjkr0BEZSNSCT2i24B49nZrGg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=lZZoliaD/CbaXfCdZCORuVvhAJVPO6oUifAUsU+maTVeLF6h6En2k+htpzvmRHhNj z3aVyHJ7J+HRir2WPRdnvqPaxgSNxrDKdaBxMZZ7a/afAWUBhMHxEFKGgaATRBdNwM r5z2zJsaESH22f41nYPfZm9mdhzFK5R5ne67Q+bKJGICKHK3QM7TIB2+Zo9GJHV5bf FCAgMxL3o4hx7chfe+wwii10o4gt8ZkozSgO5HLsxK3A6W0AFM3DcW031uOQE0JluQ ylE5jAkano6IpCavYrAbvufst+Y9pSX7/H/xStgInIBwr2bK7ShjehxoPk4s69LjVB 3TResXbwM+Jtg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3E367C3279F; Fri, 5 Jun 2026 18:23:51 +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 18:23:51 +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 #22 from George (george.stafilidis@proton.me) --- Thank you for the explanation and for your patience. I have attached (dump_off.txt,dump_low.txt,dump_high.txt and dmesg_ec.txt) I hope i did it correctly. I did try the unmodified patch and from what i can see the GNOME Quick Sett= ings panel correctly displays all three states (Off, Low, High) but dotes not ch= ange the brightness of they keyboard. Pressing Fn + Space correctly triggers the= OSD notification. i could upload a video if that's possible to show you what I = can see. (is it possible to upload mp4?) --=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.=