From patchwork Wed Aug 24 18:49:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arvid Norlander X-Patchwork-Id: 599779 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 028F7C3F6B0 for ; Wed, 24 Aug 2022 19:00:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239832AbiHXTAa (ORCPT ); Wed, 24 Aug 2022 15:00:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234181AbiHXTAP (ORCPT ); Wed, 24 Aug 2022 15:00:15 -0400 X-Greylist: delayed 598 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 24 Aug 2022 12:00:13 PDT Received: from vorpal.se (vorpal.se [151.236.221.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8CC7563D5 for ; Wed, 24 Aug 2022 12:00:11 -0700 (PDT) Received: by vorpal.se (Postfix) with ESMTPSA id 1A9A2142D4; Wed, 24 Aug 2022 18:50:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=vorpal.se; s=2019; t=1661367009; bh=tOkc2591Bqps1R3HSvWBEkbHlpCAYpv21BJlIhSxVgE=; h=From:To:Cc:Subject:Date:From; b=kWwyUc5fIXq9hlHhyimycFmy+upmTaQeGHqqBxFFw9ynmdolGcYwpTqVnrCLod2bo GWKAoTxNrMuRjPSz7deUmyBVkJNb7XRJ1PZA7aSmiDbbuQyCFOkeFrNxYY3h0kWXGa Nd98mbS8ZYIzsWoNop+Wn7PXussBOQ4Nsoqjla22HavrWO6bWKE236EnuxSVwYYblj kYvYXzfu3IIHiy48yqTGOL0IragyiDEcHMSBcNIa+tY+HuUx96inzpFCTdskq23GPC eppV03F1YUGo3sCPCX9Kk2BW/t2zY5VX/SR2syBfNCxqHdTc3sePv3HIAvhR71Kz7/ ddDMRltiP7ytA== From: Arvid Norlander To: linux-acpi@vger.kernel.org Cc: "Rafael J. Wysocki" , Hans de Goede , Len Brown , Arvid Norlander Subject: [PATCH 0/1] Fix backlight control on Toshiba Satellite Z830 Date: Wed, 24 Aug 2022 20:49:49 +0200 Message-Id: <20220824184950.631520-1-lkml@vorpal.se> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Hi, First: I'm very new to this whole kernel development thing, so applogies in advance for any mistakes. I am submitting a patch that fixes backlight on Toshiba Satellite/Portege Z830. This is a so called "ultrabook" from 2011. It needs the quirk video_disable_backlight_sysfs_if. Without it backlight control breaks after a suspend/resume cycle. However, control via intel_backlight still works. If I disable acpi_video via acpi_backlight=none however, the backlight never turns on at all after resume. Thanks to Hans de Goede for suggesting this fix. Reference: * https://www.spinics.net/lists/platform-driver-x86/msg34394.html Best regards, Arvid Norlander Arvid Norlander (1): ACPI: video: Add Toshiba Satellite/Portege Z830 quirk drivers/acpi/acpi_video.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) base-commit: 1c23f9e627a7b412978b4e852793c5e3c3efc555 Reviewed-by: Hans de Goede