From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1767169AbXCILBG (ORCPT ); Fri, 9 Mar 2007 06:01:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1767167AbXCILBG (ORCPT ); Fri, 9 Mar 2007 06:01:06 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:37145 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1767166AbXCILBD (ORCPT ); Fri, 9 Mar 2007 06:01:03 -0500 Date: Fri, 9 Mar 2007 11:56:35 +0100 From: Ingo Molnar To: Linus Torvalds Cc: "Michael S. Tsirkin" , Adrian Bunk , Andrew Morton , Linux Kernel Mailing List , Jens Axboe , Jeff Chua , pavel@suse.cz, linux-pm@lists.osdl.org, lenb@kernel.org, linux-acpi@vger.kernel.org, luming.yu@intel.com, Arkadiusz Miskiewicz , Konstantin Karasyov , Greg KH , linux-usb-devel@lists.sourceforge.net, Thomas Meyer , Meelis Roos , Alexey Starikovskiy , Janosch Machowinski , vladimir.p.lebedev@intel.com, Ash Milsted , dmitry.torokhov@gmail.com, linux-input@atrey.karlin.mff.cuni.cz, "Eric W. Biederman" Subject: Re: [2/6] 2.6.21-rc2: known regressions Message-ID: <20070309105635.GA11635@elte.hu> References: <20070305015034.GG3441@stusta.de> <20070308123143.GF5149@mellanox.co.il> <20070308192554.GA2999@elte.hu> <20070308230705.GA4611@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Linus Torvalds wrote: > > disabling the following radeonfb options in the .config made resume > > work again: > > In general, don't even *try* to use radeonfb for suspend/resume. > > I don't think it has ever worked, except on some very rare laptops > (largely PPC Macs) where people had enough information to set up the > PLL's. > > I don't think the other framebuffer drivers are much better. > > You're better off using the VGA console, and lettign X re-initialize > the graphics device. That generally at least has a reasonably good > chance of working. > > Re-initializing graphics modes really is very hard. You can try with > the BIOS video hack (I forget the kernel command line to turn it on), > but we really do end up depending on X doing it better. it's the s3_sleep boot option and /proc/sys/kernel/acpi_video_mode, but that didnt make a difference. > Some day we may have modesetting support in the kernel for some > graphics hw, right now it's pretty damn spotty. having no video is what i'd have expected - but getting a /hang/ is not what i'd have expected. Ingo