From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1945982Ab2LNXHG (ORCPT ); Fri, 14 Dec 2012 18:07:06 -0500 Received: from mail.kernel.org ([198.145.19.201]:41306 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1945964Ab2LNXHC (ORCPT ); Fri, 14 Dec 2012 18:07:02 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Stefan Nagy , Zhang Rui , "Rafael J. Wysocki" Subject: [ 16/27] ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000 Date: Fri, 14 Dec 2012 15:01:29 -0800 Message-Id: <20121214222255.050615384@linuxfoundation.org> X-Mailer: git-send-email 1.8.1.rc1.5.g7e0651a In-Reply-To: <20121214222251.229078963@linuxfoundation.org> References: <20121214222251.229078963@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.7-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhang Rui commit 129ff8f8d58297b04f47b5d6fad81aa2d08404e1 upstream. Or else the laptop will boot with a dimmed screen. References: https://bugzilla.kernel.org/show_bug.cgi?id=51141 Tested-by: Stefan Nagy Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/video.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -389,6 +389,12 @@ static int __init video_set_bqc_offset(c return 0; } +static int video_ignore_initial_backlight(const struct dmi_system_id *d) +{ + use_bios_initial_backlight = 0; + return 0; +} + static struct dmi_system_id video_dmi_table[] __initdata = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -433,6 +439,14 @@ static struct dmi_system_id video_dmi_ta DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP Folio 13-2000", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"), + }, + }, {} };