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 22B9C40D570 for ; Sat, 13 Jun 2026 07:51:16 +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=1781337077; cv=none; b=KC7uWngCBUYmfFDDi1vlHLyFT3VCQbznCD4oIuX3BPQyTM3srYKvVHLWZbWK0Ww2mQw+aY86yxxd0DFtuT03UyO5csqDxYySsh3qgcyFh2EpQuJi6lTGL7l9X/QbCU2t9rCiR0Ys+C92bJ7rhVp2JMMBc2ZGSfxw+9987FgIXU4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781337077; c=relaxed/simple; bh=Yq/cmdd91gF0QGPpCF/Ph48oMxYqtlCsY4+lHgS9OS0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=lYDU2ZQfLX9CdnBfOFAwm7t4+3cSeczS/VxZEL6xErN6lSuWS55NnXzUkyPJ1O+ZIPoh7ifiLAz8SWD9jT3L323EiLc1ZBhBvCAfQbn0vtYa73ZTmz77e/2QoXNuhxOhtqr2ukUwr2J88Ht9ERKgYLcDNhONhCqxf8Vw0D7OXn4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jAssr87J; 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="jAssr87J" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9FDCAC2BCB7 for ; Sat, 13 Jun 2026 07:51:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1781337076; bh=Yq/cmdd91gF0QGPpCF/Ph48oMxYqtlCsY4+lHgS9OS0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=jAssr87Jq6ukA9D2TGQg7bmx5VxvoauQxqqXALy4SbvbGvCzQruIurcP1h+J4hED3 0VANxEI65zXU0YIY58oftfRdeCzuVY0YJY6Y+tCB/RSDdZcRDTlFQO38Q3fXtm3ZOX Asd7tzElaDrWyRpFSP0dXKoAn+OUZOP4ogdh6y+cNlKCF+QAO9hgLYEIYsFsjJiFyZ iw2+OUGygAGNw+JNT2arDLiNxg1FGqczlN9OdpB4XM9VervXf4Aw7GoHjJVoGRf82J IR3eLPRKlouTjwx19fKjhqmCJGMDuCNBFEc9fUQqRIk7+44hl7bWbLxq2qZUsaMYNk lb+BCLKsA5w2Q== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 7CE5BC3279F; Sat, 13 Jun 2026 07:51:16 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 218901] LG Gram Laptop Extra Features not working on 2024 models (16Z90S) Date: Sat, 13 Jun 2026 07:51:16 +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: chgenn.x@gmail.com X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: CODE_FIX 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=3D218901 --- Comment #97 from Evgeny Ch (chgenn.x@gmail.com) --- Kernel: ``` $ uname -a Linux egramm16 7.0.0-22-generic #22-Ubuntu SMP PREEMPT_DYNAMIC Mon May 25 15:54:34 UTC 2026 x86_64 GNU/Linux ``` Below is unloading existing module and loading newly built kernel module wi= th corresponding dmesg lines: ``` $ sudo rmmod lg-laptop ... [ 45.626554] ACPI: battery: hook unregistered: LG Battery Extension ``` ``` $ sudo insmod lg-laptop.ko ... [ 49.458182] ACPI Error: No handler for Region [XIN1] (00000000a791ccde) [UserDefinedRegion] (20251212/evregion-131) [ 49.458190] ACPI Error: Region UserDefinedRegion (ID=3D143) has no handl= er (20251212/exfldio-261) [ 49.458194]=20 Initialized Local Variables for Method [_TMP]: [ 49.458195] Local0: 00000000181944fd Integer 000000000000002B [ 49.458198] No Arguments are initialized for method [_TMP] [ 49.458200] ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN2._TMP du= e to previous error (AE_NOT_EXIST) (20251212/psparse-529) [ 52.957699] lg_laptop: loading out-of-tree module taints kernel. [ 52.957705] lg_laptop: module verification failed: signature and/or requ= ired key missing - tainting kernel [ 52.958770] lg_laptop: product: 16Z90Q-R.APB9U1 year: 2022 [ 52.965668] LG Gram Laptop Support LGEX0820:00: LED status: 1408 [ 52.965871] input: LG WMI hotkeys as /devices/platform/LGEX0820:00/input/input19 [ 52.966015] ACPI: battery: new hook: LG Battery Extension ``` After module loading I've tried keyboard backlight control via keyboard hot key. Hot key works correctly the same 3 states way. However, no Gnome UI po= pup appears and UI brightness control slider doesn't work. This could be becaus= e of unloading old module first, but I'm not sure. dmesg lines below: ``` [ 286.267434] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 286.272300] LG Gram Laptop Support LGEX0820:00: LED status: 1442 [ 287.396406] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 287.401024] LG Gram Laptop Support LGEX0820:00: LED status: 1444 [ 288.373465] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 288.379055] LG Gram Laptop Support LGEX0820:00: LED status: 1408 [ 289.612409] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 289.617677] LG Gram Laptop Support LGEX0820:00: LED status: 1442 [ 290.947406] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 290.953464] LG Gram Laptop Support LGEX0820:00: LED status: 1444 [ 292.272403] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 292.276761] LG Gram Laptop Support LGEX0820:00: LED status: 1408 [ 294.229342] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 294.234591] LG Gram Laptop Support LGEX0820:00: LED status: 1442 [ 296.707288] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 296.712731] LG Gram Laptop Support LGEX0820:00: LED status: 1444 [ 297.680322] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 297.685602] LG Gram Laptop Support LGEX0820:00: LED status: 1408 [ 299.880236] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 299.885493] LG Gram Laptop Support LGEX0820:00: LED status: 1442 [ 301.537256] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 301.543016] LG Gram Laptop Support LGEX0820:00: LED status: 1444 [ 302.174996] kauditd_printk_skb: 11 callbacks suppressed [ 302.174999] audit: type=3D1400 audit(1781336673.678:385): apparmor=3D"AU= DIT" operation=3D"userns_create" class=3D"namespace" info=3D"Userns create - tra= nsitioning profile" profile=3D"unconfined" pid=3D9982 comm=3D"(ubuntu-insigh)" requested=3D"userns_create" target=3D"unprivileged_userns" execpath=3D"/usr/lib/systemd/systemd-executor" [ 302.175500] audit: type=3D1400 audit(1781336673.678:386): apparmor=3D"DE= NIED" operation=3D"capable" class=3D"cap" profile=3D"unprivileged_userns" pid=3D9= 982 comm=3D"(ubuntu-insigh)" capability=3D21 capname=3D"sys_admin" [ 302.208756] audit: type=3D1400 audit(1781336673.712:387): apparmor=3D"DE= NIED" operation=3D"getattr" class=3D"file" info=3D"Failed name lookup - disconnec= ted path" error=3D-13 profile=3D"unprivileged_userns" name=3D"" pid=3D9989 comm=3D"sy= stemd-detect-" requested_mask=3D"r" denied_mask=3D"r" fsuid=3D1000 ouid=3D0 [ 302.649150] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 302.655875] LG Gram Laptop Support LGEX0820:00: LED status: 1408 [ 320.042802] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 320.048202] LG Gram Laptop Support LGEX0820:00: LED status: 1442 [ 320.837776] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 320.842977] LG Gram Laptop Support LGEX0820:00: LED status: 1444 [ 322.041760] LG Gram Laptop Support LGEX0820:00: Received event 130 (268435456) [ 322.047132] LG Gram Laptop Support LGEX0820:00: LED status: 1408 ``` --=20 You may reply to this email to add a comment. 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