From patchwork Tue Nov 25 20:35:21 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamal Mostafa X-Patchwork-Id: 414892 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 22F6314019C; Wed, 26 Nov 2014 07:37:56 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1XtMrw-0005bf-Dc; Tue, 25 Nov 2014 20:37:52 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1XtMpX-0004NS-DX for kernel-team@lists.ubuntu.com; Tue, 25 Nov 2014 20:35:23 +0000 Received: from c-76-102-4-12.hsd1.ca.comcast.net ([76.102.4.12] helo=fourier) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1XtMpX-0005lc-7X; Tue, 25 Nov 2014 20:35:23 +0000 Received: from kamal by fourier with local (Exim 4.82) (envelope-from ) id 1XtMpV-0003ns-GO; Tue, 25 Nov 2014 12:35:21 -0800 From: Kamal Mostafa To: Hans de Goede Subject: [3.13.y-ckt stable] Patch "acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80" has been added to staging queue Date: Tue, 25 Nov 2014 12:35:21 -0800 Message-Id: <1416947721-14588-1-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 X-Extended-Stable: 3.13 Cc: Darren Hart , Kamal Mostafa , kernel-team@lists.ubuntu.com X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com This is a note to let you know that I have just added a patch titled acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80 to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11-ckt12. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 22f13c00f2564c7912cc453d547db2832661f572 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 22 Oct 2014 16:06:38 +0200 Subject: acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80 commit 183fd8fcd7f8afb7ac5ec68f83194872f9fecc84 upstream. The acpi-video backlight interface on the Acer KAV80 is broken, and worse it causes the entire machine to slow down significantly after a suspend/resume. Blacklist it, and use the acer-wmi backlight interface instead. Note that the KAV80 is somewhat unique in that it is the only Acer model where we fall back to acer-wmi after blacklisting, rather then using the native (e.g. intel) backlight driver. This is done because there is no native backlight interface on this model. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1128309 Signed-off-by: Hans de Goede Signed-off-by: Darren Hart Signed-off-by: Kamal Mostafa --- drivers/platform/x86/acer-wmi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) -- 1.9.1 diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 3990c79..b942a1b 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -580,6 +580,17 @@ static const struct dmi_system_id video_vendor_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), }, }, + { + /* + * Note no video_set_backlight_video_vendor, we must use the + * acer interface, as there is no native backlight interface. + */ + .ident = "Acer KAV80", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), + }, + }, {} };