From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265698AbTL3Jk2 (ORCPT ); Tue, 30 Dec 2003 04:40:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265705AbTL3Jk2 (ORCPT ); Tue, 30 Dec 2003 04:40:28 -0500 Received: from dsl092-053-140.phl1.dsl.speakeasy.net ([66.92.53.140]:47246 "EHLO grelber.thyrsus.com") by vger.kernel.org with ESMTP id S265698AbTL3JkX (ORCPT ); Tue, 30 Dec 2003 04:40:23 -0500 From: Rob Landley Reply-To: rob@landley.net To: linux-kernel@vger.kernel.org Subject: Software suspend in 2.6.0 Date: Tue, 30 Dec 2003 00:00:04 -0600 User-Agent: KMail/1.5.4 Cc: pavel@ucw.cz MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200312300000.05201.rob@landley.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Since Patrick fell off the face of the earth, I've switched to Pavel's suspend code, which pretty much works the same way, but has some similar rough edges. The first suspend works nicely. After resuming from that and suspending again, the screen gets blanked early in the suspend (immediately after "suspending processes", and then the suspend is REALLY SLOW. (You can see the hard drive light light up and go off again with a 1/2 second gap between each page saved.) I think that what's happening is that during the "power stuff down" phase, the device list is including the screen and processor and powering them down. The processor goes into an insanely slow state, and the display is black. (The suspend will usually complete normally when this happens, if you give it 10 minutes.) It doesn't do this on the first suspend, but it does it on second and later suspends. Any suggestions? Rob