Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932482AbYGOAvo (ORCPT ); Mon, 14 Jul 2008 20:51:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757907AbYGOAvI (ORCPT ); Mon, 14 Jul 2008 20:51:08 -0400 Received: from mga02.intel.com ([134.134.136.20]:62407 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759747AbYGOAvB (ORCPT ); Mon, 14 Jul 2008 20:51:01 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.30,362,1212390000"; d="scan'208";a="315313409" Subject: Re: BIOS-controlled FN keys works only with "acpi={off | ht}" on Samsung P500 From: Zhang Rui To: Paolo Ornati Cc: Linux Kernel , Linux ACPI In-Reply-To: <20080714213755.7e892550@paolo-laptop> References: <20080714213755.7e892550@paolo-laptop> Content-Type: text/plain Date: Tue, 15 Jul 2008 08:49:57 +0800 Message-Id: <1216082997.1617.87.camel@rzhang-dt> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2633 Lines: 62 On Mon, 2008-07-14 at 21:37 +0200, Paolo Ornati wrote: > Hello, > > on this laptop, Samsung NP-P500Y, some function keys are > BIOS-controlled (they work before Linux boots). > > As soon as Linux boots they stop working. Trying some boot options I've > found that "acpi=off" makes them work and the less drastic "acpi=ht" > works too. > > I'm mostly interested in brightness adjusting... and since both > xbacklight and radeontool fail I've to use "acpi=ht". Please file a bug report at http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the dmesg, acpidump output. Please run "grep . /sys/firmware/acpi/interrupts/*" both before and after pressing the brightness hotkey and attach the test result as well. thanks, rui > > Disabling ACPI is not a good idea on a laptop... so other boot > options/patches to try are welcomed :) > > > tested kernels: 2.6.22 / 2.6.24 (Ubuntu) > 2.6.18 - 2.6.26-rc9 (vanilla) > > > lspci: > 00:00.0 Host bridge: ATI Technologies Inc Unknown device 7930 > 00:01.0 PCI bridge: ATI Technologies Inc Unknown device 7932 > 00:05.0 PCI bridge: ATI Technologies Inc Unknown device 7935 > 00:06.0 PCI bridge: ATI Technologies Inc Unknown device 7936 > 00:07.0 PCI bridge: ATI Technologies Inc Unknown device 7937 > 00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA > 00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0) > 00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1) > 00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2) > 00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3) > 00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4) > 00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI) > 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14) > 00:14.1 IDE interface: ATI Technologies Inc SB600 IDE > 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia > 00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge > 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge > 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Xpress 1250 > 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01) > 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8039 PCI-E Fast Ethernet Controller (rev 15) > > > dmidecode and dmesg attached -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/