From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261279AbVC1HtN (ORCPT ); Mon, 28 Mar 2005 02:49:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261280AbVC1HtN (ORCPT ); Mon, 28 Mar 2005 02:49:13 -0500 Received: from smtp102.rog.mail.re2.yahoo.com ([206.190.36.80]:61854 "HELO smtp102.rog.mail.re2.yahoo.com") by vger.kernel.org with SMTP id S261279AbVC1HtK (ORCPT ); Mon, 28 Mar 2005 02:49:10 -0500 From: Shawn Starr Organization: sh0n.net To: LKML Subject: [2.6.12-rc1][ACPI][suspend] /proc/acpi/sleep vs /sys/power/state issue - 'standby' on a laptop Date: Mon, 28 Mar 2005 02:49:04 -0500 User-Agent: KMail/1.7.2 Cc: lenb@intel.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200503280249.05933.shawn.starr@rogers.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, I've noticed something strange with issuing 'standby' to the system: when echoing "standby" to /sys/power/state, nothing happens, not even a log or system activity to attempt standby mode. However, trying echo "1" to /proc/acpi/sleep the system attempts to (standby) and aborts: [4295945.236000] PM: Preparing system for suspend [4295946.270000] Stopping tasks: =============================================================================| [4295946.370000] Restarting tasks... done We get no reason as to why it quickly aborts. [4294672.065000] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3]) [4294676.827000] ACPI: (supports S0 S3 S4 S5) What is '1' in /proc/acpi/sleep? standby mode is not the same as suspend to ram? when I put a normal desktop in standby mode its still 'on' but the hard disk is put to sleep and the system runs in a lower power mode. Shawn.