From patchwork Thu Mar 2 09:40:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AceLan Kao X-Patchwork-Id: 1750547 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=Y+OGVC10; dkim-atps=neutral Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4PS5h26FChz23j7 for ; Thu, 2 Mar 2023 20:40:50 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1pXfQW-0003e3-Id; Thu, 02 Mar 2023 09:40:40 +0000 Received: from mail-wr1-f54.google.com ([209.85.221.54]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1pXfQT-0003dU-Sj for kernel-team@lists.ubuntu.com; Thu, 02 Mar 2023 09:40:37 +0000 Received: by mail-wr1-f54.google.com with SMTP id e13so4344609wro.10 for ; Thu, 02 Mar 2023 01:40:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:sender:from:to:cc:subject:date:message-id:reply-to; bh=uWtwbDNutYNfxRsyz9FBUrSbRrqHVmKibv4YmTjinl8=; b=Y+OGVC10IU4jq0ed2oAOsnSz4E5eFU8N7r8Kbm61issccr3FJC48pmb02VCW1FpZhF tgV5INyaj1FAB7pMpBhcx6rxYCWutugVN7tgZ/tfsMXYoMbdDDJNp8MF7Yg3Nc+b9crc 72JMNWKaOJuaQY3RtfmVkef8uqyWirqCRui5+nvSYYhEPHX+JxEUdV3f5Zi8mmENhFWQ k4fhII5nyelqJzyqHvOKTs8Cv/x6DDKkCbVXoKHt4wiCW4XofZGj18Q9K9XooOu1JTyT C+Rr5iuoOYaS2+/BLeM0qdGnNsMdQeOrXxMccCHVc8M6sSFzUCJ2/iBH61Mwg87AW9ni yDNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:sender:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=uWtwbDNutYNfxRsyz9FBUrSbRrqHVmKibv4YmTjinl8=; b=Ygj1HPbgGu2DpF4eiFTA+D7N9DCiqQxK8aWRgs3PDQRyP5mpXMGBOGzRh/7KGewLCn o8UZBZ0/jU5rqeMkh71sUMXi70z2wWnV5xWIUUrUJSCVZTlfXr5tRNfyV9hjTBhT6tXG mcguoewvrv1ZJr4CQxLT1T+phIx4/nwAdSM9n/xvNnUf8phXLMByfkLMpWpar6Udv21X g3Uok6MevI/zu2I/RWGEZbPm2BFazuDQKcGiAM2PmhZe69BNYyQjUCNvDz7xveD/MT2U 1vLKcLDXxt3TfV1ovRiGdF2G/nHnDuiu1FhDpfMl5t3P+19clAY9UOuNBZmkeJ94WHv0 TpVg== X-Gm-Message-State: AO0yUKVdlUm9qe5tgQ3+9lJNcmD8pJrKmK9m51SrdjhhLU5pKE0EzCMq IZ+Z8yl8dw/NK/0Ip0fmxeQgZxzMTWVK8o2J X-Google-Smtp-Source: AK7set+V/TMAlyyrVKqrbMSKWdBm73SuQhyMcWIuWsLg95YdI80WynZSeNyUBqBRohEgWH2Hzjxdhw== X-Received: by 2002:adf:ec0a:0:b0:2c7:7b0:298 with SMTP id x10-20020adfec0a000000b002c707b00298mr7516193wrn.38.1677750036652; Thu, 02 Mar 2023 01:40:36 -0800 (PST) Received: from localhost ([2001:67c:1560:8007::aac:c468]) by smtp.gmail.com with ESMTPSA id b10-20020adfee8a000000b002c54c8e70b1sm15503725wro.9.2023.03.02.01.40.34 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Mar 2023 01:40:36 -0800 (PST) From: AceLan Kao To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/1][SRU][L][OEM-6.1] Screen backlight keeps in minimized and can't change it with amdgpu Date: Thu, 2 Mar 2023 17:40:28 +0800 Message-Id: <20230302094029.64001-1-acelan.kao@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=209.85.221.54; envelope-from=acelan@gmail.com; helo=mail-wr1-f54.google.com X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" From: "Chia-Lin Kao (AceLan)" BugLink: https://launchpad.net/bugs/2008871 [Impact] Sometimes the system boots up with both acpi_video0 and amdgpu_bl0 sysfs interfaces and the acpi_video0 doesn't work. [Fix] Add this machine to the video_detect_dmi_table to force it uses native backlight interface which is amdgpu_bl0. https://lkml.org/lkml/2023/3/2/187 [Verify] Verified by our QA and ODM. [Where problems could occur] Pretty safe to add the DMI quirk, won't affect other platforms. Chia-Lin Kao (AceLan) (1): UBUNTU: SAUCE: ACPI: video: Add backlight=native DMI quirk for Dell Vostro 15 3535 drivers/acpi/video_detect.c | 7 +++++++ 1 file changed, 7 insertions(+)