From patchwork Fri Jan 13 11:41:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 643460 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 B24E3C67871 for ; Fri, 13 Jan 2023 11:51:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240865AbjAMLvj (ORCPT ); Fri, 13 Jan 2023 06:51:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241315AbjAMLvQ (ORCPT ); Fri, 13 Jan 2023 06:51:16 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F222E50F70 for ; Fri, 13 Jan 2023 03:41:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673610101; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=isVOZ9GRr18rPWGPzYgy4dJ/cFyoVZ1pgMHiAqQq1BA=; b=GGr1Xr7ozEMIrdUQ8BgcSavAHShFtet1SP4ff9LQKIhk6HsFl7F5Oh/Fn/KZMYAq+6DiNQ hpsz5TsbQuhTQ8f8y+tuQQjw/NzudmZwIuvfhAYGVoEfzl/6Q1F0gPuRvjYb+m5rwkh5jC 1y/yp7AkYqtkKQpqechTehzJkKVUM4s= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-561-4ftcf2kwPuepngchr3KO3A-1; Fri, 13 Jan 2023 06:41:36 -0500 X-MC-Unique: 4ftcf2kwPuepngchr3KO3A-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A1C933813F34; Fri, 13 Jan 2023 11:41:35 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.194.54]) by smtp.corp.redhat.com (Postfix) with ESMTP id C09544078904; Fri, 13 Jan 2023 11:41:34 +0000 (UTC) From: Hans de Goede To: "Rafael J . Wysocki" Cc: Hans de Goede , Len Brown , linux-acpi@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH] ACPI: video: Add backlight=native DMI quirk for Acer Aspire 4810T Date: Fri, 13 Jan 2023 12:41:26 +0100 Message-Id: <20230113114126.172078-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org The Acer Aspire 4810T predates Windows 8, so it defaults to using acpi_video# for backlight control, but this is non functional on this model. Add a DMI quirk to use the native backlight interface which does work properly. Signed-off-by: Hans de Goede --- drivers/acpi/video_detect.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index d4edd64dcc2f..fb526ba8825b 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -515,6 +515,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), }, }, + { + .callback = video_detect_force_native, + /* Acer Aspire 4810T */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"), + }, + }, { .callback = video_detect_force_native, /* Acer Aspire 5738z */