From mboxrd@z Thu Jan 1 00:00:00 1970 From: ZhangRui Subject: Re: [linux-pm] Acer 6592 TM, suspend to ram and resume freeze Date: Wed, 04 Feb 2009 09:52:27 +0800 Message-ID: <1233712347.6643.7.camel@rzhang-desktop> References: <873aevl0l8.fsf@free.fr> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com ([143.182.124.21]:23868 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751045AbZBDBvM (ORCPT ); Tue, 3 Feb 2009 20:51:12 -0500 In-Reply-To: <873aevl0l8.fsf@free.fr> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Robert Jarzmik Cc: "linux-acpi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-pm@lists.linux-foundation.org" On Wed, 2009-02-04 at 04:36 +0800, Robert Jarzmik wrote: > First of all, sorry for the duplicate on linux-pm, but as Pavel suggested, this > topic gains wider audience as acpi and pm are involved. > > I have an issue with my laptop with suspend to ram. > My laptop is an Acer Travelmate 6592g : > > > [rj@velvet wireshark-1.0.5 (master)]$ sudo s2ram -i > > This machine can be identified by: > > sys_vendor = "Acer" > > sys_product = "TravelMate 6592" > > sys_version = "PSMBOU-1234567" > > bios_version = "V1.53 " > > The kernel running is the last I have : 2.6.29-rc1, but the problem is the same > whatever the kernel version I take (between 2.6.16 and 2.6.29-rc1). > > The issue is that even if the laptop enters suspend correctly, it hangs on > comming out of it. After some research, I cornered down the module which changes > the behaviour : acpi_cpufreq.ko. > > When I forbid the laptop to load this module, the suspend to ram works like a > charm, in "init" single mode or multi-user mode. When I load the module, the > resume always hangs (fan goes high speed like crazy, no LCD back, hard drive led > stays on, caps_lock key not responsive, ...) what if you build in the ACPI processor driver (CONFIG_ACPI_PROCESSOR=y) and boot with "processor.max_cstate=1"? > > Now, I notice that loading acpi-cpufreq triggers the following message : > > log: Jan 19 18:23:42 velvet kernel: ACPI: EC: non-query interrupt received, switching to interrupt mode > I don't think these two are related. can you please make a double check? thanks, rui