From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751868Ab1KSHUY (ORCPT ); Sat, 19 Nov 2011 02:20:24 -0500 Received: from bay0-omc1-s6.bay0.hotmail.com ([65.54.190.17]:57913 "EHLO bay0-omc1-s6.bay0.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751024Ab1KSHUX (ORCPT ); Sat, 19 Nov 2011 02:20:23 -0500 X-Greylist: delayed 370 seconds by postgrey-1.27 at vger.kernel.org; Sat, 19 Nov 2011 02:20:23 EST Message-ID: X-Originating-IP: [76.190.155.50] From: =?utf-8?B?5bCP6b6ZIOmZiA==?= To: Subject: thinkpad_acpi does not generate correct ACPI events when brightness_enable=0 Date: Sat, 19 Nov 2011 02:14:12 -0500 Importance: Normal Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 X-OriginalArrivalTime: 19 Nov 2011 07:14:12.0703 (UTC) FILETIME=[D6D73EF0:01CCA68A] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id pAJ7KY59015551 Hi! I'm having a problem with the thinkpad_acpi kernel module where it does notgenerate a brightness down ACPI event when the "brightness_enable=0" parameteris set. This only happens when the module is automatically loaded at boot andafter resume from suspend. Everything is fine once I run:   rmmod thinkpad_acpi  modprobe thinkpad_acpi brightness_enable=0 The "acpi_listen" command shows this following when either the brightness up orbrightness down button is pressed:   ibm/hotkey LEN0068:00 00000080 00006050 and also the following when the brightness up button is pressed:   video/brightnessup BRTUP 00000086 00000000 The following brightness down ACPI event is only generated after the module isreloaded:   video/brightnessdown BRTDN 00000087 00000000 Is this a known bug (or even a bug at all)? The kernel bugzilla is down. Also, I apologize if the kernel mailing list is the wrong place to post this.If this belongs somewhere else, I'd appreciate it if someone told me where. Regards,Xiao-Long Chen {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I