From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CE463359F9C; Fri, 9 Jan 2026 12:25:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767961530; cv=none; b=JFkfyGU3aDN5PsBFWEK9vY7h+X/45v8Gsb3UB1nhvup/1pYMMCLYlK/K7Uy703SUJD9dkxWKjLyZgC9RDffkoIeP055hoLCKSTGwYPPlUCDASJKmLOuaU2cjCGZAW1NRAJMTRzVF00xWXdF5+nM+A52STShFqs1S8UWvQVU+ipM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767961530; c=relaxed/simple; bh=io1jmPlXEIbLibNVHsOEnoANo2t3+PL+flL9Ev5M/2U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kcoOXQDfKqAoAco9kHVEkhP4Uob6rMRzikDMnDg5s5jKFUKAj5DGPjhwlGtkIeY5t6+DHKgwaAY1JBZmHd2iro6T+g0vVrWNxHZcQWA0PjxlGFnGj4+A78mG3pF8j5EiBuE85/N+Yg6A8Y4AEH9veVKHjwga5i4r8Cv32EbpDl4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BXnXkC8O; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BXnXkC8O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C82CC4CEF1; Fri, 9 Jan 2026 12:25:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767961529; bh=io1jmPlXEIbLibNVHsOEnoANo2t3+PL+flL9Ev5M/2U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BXnXkC8OOekwnm5+fadgIqj5mfhw1WbYW3ULVavMrgyFJbDsiCV1yUwd0z6X2fLwx oHmxTNSuXl8Oj/04EHdfLW1hOobsg7hj+9M3pu3OmPHAo2b/IAu5vlm/swYIxqRVgQ CSAdNE1+sinYl2Zfr6IgeTvZMGs3oWnlFYDmCuU8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bugaddr , Armin Wolf , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Sasha Levin Subject: [PATCH 6.1 029/634] platform/x86: acer-wmi: Ignore backlight event Date: Fri, 9 Jan 2026 12:35:07 +0100 Message-ID: <20260109112118.544335048@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260109112117.407257400@linuxfoundation.org> References: <20260109112117.407257400@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Armin Wolf [ Upstream commit 444a9256f8d106e08a6bc2dc8ef28a8699e4b3ba ] On the Acer Nitro AN515-58, the event 4 - 0 is send by the ACPI firmware when the backlight up/down keys are pressed. Ignore this event to avoid spamming the kernel log with error messages, as the acpi-video driver already handles brightness up/down events. Reported-by: Bugaddr Closes: https://bugaddr.tech/posts/2025-11-16-debugging-the-acer-nitro-5-an515-58-fn-f10-keyboard-backlight-bug-on-linux/#wmi-interface-issues Tested-by: Bugaddr Signed-off-by: Armin Wolf Link: https://patch.msgid.link/20251117155938.3030-1-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin --- drivers/platform/x86/acer-wmi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index da765a7dedbc4..46311befc81ae 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -86,6 +86,7 @@ MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026"); enum acer_wmi_event_ids { WMID_HOTKEY_EVENT = 0x1, + WMID_BACKLIGHT_EVENT = 0x4, WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5, WMID_GAMING_TURBO_KEY_EVENT = 0x7, WMID_AC_EVENT = 0x8, @@ -1992,6 +1993,9 @@ static void acer_wmi_notify(u32 value, void *context) sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true); } break; + case WMID_BACKLIGHT_EVENT: + /* Already handled by acpi-video */ + break; case WMID_ACCEL_OR_KBD_DOCK_EVENT: acer_gsensor_event(); acer_kbd_dock_event(&return_value); -- 2.51.0