Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161435AbWALXIt (ORCPT ); Thu, 12 Jan 2006 18:08:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161264AbWALXIt (ORCPT ); Thu, 12 Jan 2006 18:08:49 -0500 Received: from igw2.zrnko.cz ([81.31.45.164]:23439 "EHLO anubis.fi.muni.cz") by vger.kernel.org with ESMTP id S1161435AbWALXIs (ORCPT ); Thu, 12 Jan 2006 18:08:48 -0500 Date: Fri, 13 Jan 2006 00:08:35 +0100 From: Lukas Hejtmanek To: linux-kernel@vger.kernel.org Subject: ACPI Suspend-to-ram issues Message-ID: <20060112230835.GC2961@mail.muni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2241 Lines: 61 Hello, I noticed (also thanks to discussion about DOS and NTFS) that suspend to ram consumes a lot of battery power. I'm using 2.6.15-git7 kernel now. According to lspci I have: 0000:00:00.0 Host bridge 0000:00:01.0 PCI bridge 0000:00:02.0 VGA compatible controller (915GM) 0000:00:02.1 VGA compatible controller 0000:00:1b.0 High Definition Audio Controller 0000:00:1d.0 USB Controller UHCI 0000:00:1d.1 USB Controller UHCI 0000:00:1d.2 USB Controller UHCI 0000:00:1d.3 USB Controller UHCI 0000:00:1d.7 USB Controller EHCI 0000:00:1e.0 PCI bridge 0000:00:1f.0 ISA bridge 0000:00:1f.1 IDE interface 0000:00:1f.3 SMBus Controller 0000:01:00.0 Ethernet controller 0000:01:01.0 CardBus bridge 0000:01:01.1 FireWire (IEEE 1394) 0000:01:01.2 SD/SDIO/MMC/MS/MSPro 0000:01:01.3 Memory Stick Bus 0000:01:01.4 Ricoh Co Ltd xD-Picture Card Controller 0000:01:02.0 Network controller I have modules for both USB1.1, USB2.0, sound card, dri, both ethernet controllers, cardbus, and IEEE1394. In normal situation, I load modules for: DRI, sound, USB1, USB2, ethernet cotroller. Suspend-to-ram takes 2.8W. If I boot using init=/bin/bash i.e. not using any module, then suspend-to-ram takes 1.6W (which is still a lot, it should taky 0.7W approx). I do not know, how PCI devices disabling works. Does message: ACPI: PCI interrupt for device 0000:01:00.0 disabled have additional meaning, that device 0000:01:00.0 went into D3 state? However, I have these messages in dmesg (if usual modules are present): ACPI: PCI interrupt for device 0000:01:00.0 disabled ACPI: PCI interrupt for device 0000:00:1d.7 disabled ACPI: PCI interrupt for device 0000:00:1d.3 disabled ACPI: PCI interrupt for device 0000:00:1d.2 disabled ACPI: PCI interrupt for device 0000:00:1d.1 disabled ACPI: PCI interrupt for device 0000:00:1d.0 disabled ACPI: PCI interrupt for device 0000:00:1b.0 disabled So, it looks like IRQ is not disabled for graphic and IDE, cardbus, firewire, card reader. Is this OK? -- Luk?? Hejtm?nek - 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/