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 6D003188596 for ; Mon, 1 Jun 2026 17:30:16 +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=1780335016; cv=none; b=Lw1uVPiy1qjkz/HhcMUL5cVKGI97lOiniBzfFneQpzdoWI3Qsq3Hc33qQQbSqPow6cuFnizz7lZwT4eVhzZkdy6S20DRukLd+nnujzcdmtYiiXnHBSiLyKJ5LCjo6z/Cw8Lg10Kl2lIUL2B1egBsGqPM1qnndKHHuiYmSurxzc8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780335016; c=relaxed/simple; bh=qa2PBGjB73DNWp+O5whbqf28pX6th57E52vQLLhe+wQ=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=AUFo5hOYm+Kd/2VWUlMq13d305lh6ofPXF548UwmaoPXXtpCZL1kPPAHOvq5TsjLOu8fioP3AROvsBo6se32uKgHMxkRx0HzxjAEzvO+GGe3YaA4Vt9AXGe5KyJD2+53OnVa2yanufnMseiXDDB6oPbUiqCaJ30AXVxGIbhsVCg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ShQWh6vc; 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="ShQWh6vc" Received: by smtp.kernel.org (Postfix) with ESMTPS id 0EE30C2BCB8 for ; Mon, 1 Jun 2026 17:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780335016; bh=qa2PBGjB73DNWp+O5whbqf28pX6th57E52vQLLhe+wQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ShQWh6vc0D9g34hhHq5RTc/ijP72we7bLuW0vSAuk/EdeuLfZA+vGBUqhJeJH9eJ6 +wYNBvKI2chO1ax6Rr/NjrIyqFb2N0UuPnEYLgnmpac/ecoKEL0wbTHRsO1ZU/VVd3 /LJrAgOhir4sPwcK9w+SPIBt9KQB+sGxvkLLu19zScVwNuxpa+ViSOpz4thvFMAbCU d4W58rGARU+Cu6YE+Wqdg5s5l9et0bV6CTMfNK06qu5tiHTFVsfEfbepsBYcxbpTWe Kkncq89zjX+nfulFU+gmlnPYSvmenlsEGAGL8CN+VGCSJVoJDsadv+d617xbQe9Won X21aZDGEVnMIQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id E6470C3279F; Mon, 1 Jun 2026 17:30:15 +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: Mon, 01 Jun 2026 17:30:15 +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: i@rong.moe 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: cc 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 Rong Zhang (i@rong.moe) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |i@rong.moe --- Comment #1 from Rong Zhang (i@rong.moe) --- Hi George, Could you please dump the files under /sys/kernel/debug/ideapad/ and attach them when replying? Please also cycle the keyboard backlight brightness with Fn+Space and see if it changes their content. An acpidump will also be helpful. Thanks, Rong --=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.=