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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C488DC1550E for ; Wed, 10 Mar 2021 13:25:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9AED164FF7 for ; Wed, 10 Mar 2021 13:25:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233299AbhCJNZT (ORCPT ); Wed, 10 Mar 2021 08:25:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:46196 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233027AbhCJNYs (ORCPT ); Wed, 10 Mar 2021 08:24:48 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 232E364FFC; Wed, 10 Mar 2021 13:24:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615382687; bh=1uhXVIS//+Clk2H0qeN43XnBqr6HjMCTkAP1apyCX+U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HbsCtTagiZJOlKBm/dmkyb1gadSV+/w89mhevXUoSu1ZNrtCZYdym7v/OFOfbje+D 1ZdWWfVVUUFUQ4ZdJosPwaoNgVG6QViB+SbHTuqj5JV/SblkFq/lciuLBMJteLHxH5 eIoQnlAGBChVHdy0YzBwlIC0QKVL/6XGzpPsloEI= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Jasper St. Pierre" , Chris Chiu , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 5.10 23/49] ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807 Date: Wed, 10 Mar 2021 14:23:34 +0100 Message-Id: <20210310132322.685806668@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210310132321.948258062@linuxfoundation.org> References: <20210310132321.948258062@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Jasper St. Pierre [ Upstream commit 25417185e9b5ff90746d50769d2a3fcd1629e254 ] The GIGABYTE GB-BXBT-2807 is a mini-PC which uses off the shelf components, like an Intel GPU which is meant for mobile systems. As such, it, by default, has a backlight controller exposed. Unfortunately, the backlight controller only confuses userspace, which sees the existence of a backlight device node and has the unrealistic belief that there is actually a backlight there! Add a DMI quirk to force the backlight off on this system. Signed-off-by: Jasper St. Pierre Reviewed-by: Chris Chiu Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/video_detect.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 4f5463b2a217..811d298637cb 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -140,6 +140,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_vendor, + .ident = "GIGABYTE GB-BXBT-2807", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"), + }, + }, + { .ident = "Sony VPCEH3U1E", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), -- 2.30.1