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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71B80CCA47C for ; Mon, 13 Jun 2022 10:55:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347572AbiFMKzs (ORCPT ); Mon, 13 Jun 2022 06:55:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350295AbiFMKys (ORCPT ); Mon, 13 Jun 2022 06:54:48 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1497D13E16 for ; Mon, 13 Jun 2022 03:30:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A2E0B60EF5 for ; Mon, 13 Jun 2022 10:30:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 0D03BC34114 for ; Mon, 13 Jun 2022 10:30:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1655116242; bh=PHXISeuJlnElXsRTl0Rm1K5iopcAJPoIM1q5qBWHZvI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=SZwLRMODJ+FKfd97ZvB6SBJKl6+ct/44JxAbG/TejsGBWEE7aAcgo+3XzACbF3jGk jXr+s3ACr77/6ql0OObi5SRTWeRz7r4N14PTLWZs+OHzYxWmKyCctUmtJ5KBxl+9Vx JJ64BzL9Hcz842xZrWme4gwCpyG0k3hyZy1E5SEa+fMNS4BMFcVBMef2hhiqjH0yD0 C7mne94nfQ6SITBytPgUY+idYHSlt20a1RZVWZlZEmzwGdNgRwPZUrVAETDTCq+Pjf 1bwscxuhRqars1a++3ffqhFYYHd3o2c0WY14cygCbi7tdtGd6K63yKIeTtmHAgehkk DDZhDgXVB2mUA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id E0296C05FD5; Mon, 13 Jun 2022 10:30:41 +0000 (UTC) From: bugzilla-daemon@kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 214899] ideapad-laptop: brightness hotkeys not working Date: Mon, 13 Jun 2022 10:30:41 +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: jwrdegoede@fedoraproject.org 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=3D214899 --- Comment #32 from Hans de Goede (jwrdegoede@fedoraproject.org) --- (In reply to Johannes Pen=C3=9Fel from comment #31) > Thank you for your help! You're welcome and thank you for your work on this, your APCI debugging ski= lls are impressive! > My understanding of ACPI is limited, but my guess would be that for some > reason, \_SB.PC00.LPCB.EC0._REG gets evaluated before _SB.PC00._INI, thus > leaving the former with an incorrect value for OSYS. AFAICT, this does not > look too dissimilar from the issue in the bugzilla thread you linked. Yes, I believe that that is what is happening too. Looking at the code I have an idea how to fix this, I'm testing a patch for this now (to make sure it does not regress things on other hw, or at least = on my laptop). --=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.=