From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: Resume hanging on MSI motherboard Date: Tue, 8 Dec 2009 13:38:56 +0100 Message-ID: <200912081338.56941.rjw@sisk.pl> References: <20091204081739.575b29d5@mjolnir.ossman.eu> <20091208090327.3ac443e9@mjolnir.ossman.eu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20091208090327.3ac443e9@mjolnir.ossman.eu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: linux-pm@lists.linux-foundation.org Cc: Pierre Ossman List-Id: linux-pm@vger.kernel.org On Tuesday 08 December 2009, Pierre Ossman wrote: > Anyone? Sorry, it's just difficult to advise something in this case. You can try to use the /sys/power/pm_test tests to see if the problem is related to the drivers (it is described in Documentation/power/basic-pm-debugging.txt), but I bet it's not. > On Fri, 4 Dec 2009 08:17:39 +0100 > Pierre Ossman wrote: > > > I have a MSI Neo2-Digital board that I'm trying to get suspend working > > on. I'm not having much luck though, so I need some pointers on how to > > debug this. > > > > The symptoms are that the machine shuts down when suspend is triggered > > and wakes up when the power button is pressed or an usb device pokes > > it. Unfortunately it never gets back to a running state. It rattles a > > bit on the disk, powers up the fans and turns on the LEDs, but that's > > it. > > > > Doing a suspend in Windows has entirely different behaviour. There it > > keeps all fans running, and doesn't do much in the way of saving power. > > It goes from 90 W to 67 W from idle to "standby". The [broken] state > > Linux puts the system in OTOH runs at 13 W ("off" is 10 W). > > > > I've been trying to use pm_trace to debug where things lock up, but I'm > > not able to get it to work. I do "echo 1 > /sys/power/pm_trace" and > > then suspend the machine. But at the next boot, the clock is still sane > > so it seems like the PM code never stores anything. > > > > Help :/ Thanks, Rafael