From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34ECEC4708F for ; Tue, 1 Jun 2021 19:00:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C920613BC for ; Tue, 1 Jun 2021 19:00:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234678AbhFATCD (ORCPT ); Tue, 1 Jun 2021 15:02:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:46480 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234716AbhFATCA (ORCPT ); Tue, 1 Jun 2021 15:02:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id ACC12613C5 for ; Tue, 1 Jun 2021 19:00:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622574018; bh=TBygYJDsR05EIpPrWZfjiynDRMBp/UxYXFq+iLtzvn8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=MDETaezb7T84+aplW7HOdHxGIDflSj/Xu0SSOzen9+VZteU/UJWMy+5SUaSPzmHTr 4yUEGeOWyyu7B46FNER0T2thP7iAKflNNiczIWITwSzDzwyN0eF4onl/FcqTxJieVE znBVqJ+a+nJrTDCO2B8fGt14vKhruIlfKkz9x56/FHBH5Mw1x7aIvC6gSoyuPeZbBo cjz3rlBUktLbAyepsNljM7lzA5bglw8TXg8gFPaMxR5pfsIgCqGwpKq7RDfuyfasvl JoBmj02jyJFK6WDAKmfJoSOE3L0uJnR68eveXHAucBHSbtaWU6xBnCs1l1ONjn8r0a 2E999Lnn4GqDQ== From: bugzilla-daemon@bugzilla.kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 213297] ideapad-laptop: DYTC interface not found, several functionalities missing Date: Tue, 01 Jun 2021 19:00:18 +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: johannes.penssel@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 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 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D213297 --- Comment #4 from Johannes P (johannes.penssel@gmail.com) --- (In reply to Barnab=C3=A1s P=C5=91cze from comment #3) > As for /sys/firmware/acpi/platform_profile, the issue is very possible the > same as https://bugzilla.kernel.org/show_bug.cgi?id=3D212985 , that is, t= he > driver only supports DYTC 5 and above, but it seems from the DSDT that > version 4 is available on that machine. >=20 > As for the keyboard backlight, it's not available because the driver only > supports and older version of the keyboard backlight control interface wh= ich > does not seem to be available. >=20 > As for "LUK2019" and "IDEA2004", those devices don't seem to be that > interesting (I might be wrong though) at first glance since they seem to > contain more or less nothing as far as I can see: >=20 > Device (HKDV) > { > Name (_HID, "LHK2019") // _HID: Hardware ID > Name (_UID, Zero) // _UID: Unique ID > Method (_STA, 0, NotSerialized) // _STA: Status > { > Return (0x0F) > } > } >=20 > ... >=20 > Scope (^^EC0) > { > Device (ITSD) > { > Name (_HID, "IDEA2004") // _HID: Hardware ID > Method (_STA, 0, NotSerialized) // _STA: Status > { > Return (0x0F) > } > } > } >=20 > As for the, I assume, screen backlight and Fn keys, unfortunately I cannot > help. Thank you for your help! I thought mentioning LHK2019 and IDEA2004 might be relevant as both platforms load Lenovo-specific drivers in Windows 10, thus= I assumed that they are supposed to do the same in Linux.=20 May I ask how you were able to determine the DYTC version on my machine? I = have been unsuccessfully trying to figure it out myself for the last few days. Thanks! --=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.=