Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756711Ab3FKUED (ORCPT ); Tue, 11 Jun 2013 16:04:03 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:41943 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756689Ab3FKUD7 (ORCPT ); Tue, 11 Jun 2013 16:03:59 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ash Willis , "Rafael J. Wysocki" Subject: [ 30/79] ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6 Date: Tue, 11 Jun 2013 13:02:56 -0700 Message-Id: <20130611195316.427835063@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.254.g5578ad7 In-Reply-To: <20130611195312.352656079@linuxfoundation.org> References: <20130611195312.352656079@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1478 Lines: 46 3.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ash Willis commit 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 upstream. This patch addresses kernel bug 56661. BIOS reports an incorrect backlight value, causing the driver to switch off the backlight completely during startup. This patch ignores the incorrect value from BIOS. References: https://bugzilla.kernel.org/show_bug.cgi?id=56661 Signed-off-by: Ash Willis Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -449,6 +449,14 @@ static struct dmi_system_id video_dmi_ta }, { .callback = video_ignore_initial_backlight, + .ident = "HP Pavilion g6 Notebook PC", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), + }, + }, + { + .callback = video_ignore_initial_backlight, .ident = "HP Pavilion m4", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/