From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: [2/6] 2.6.21-rc2: known regressions Date: Thu, 8 Mar 2007 15:49:17 -0800 (PST) Message-ID: 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="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20070308230705.GA4611@elte.hu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: Ingo Molnar Cc: Ash Milsted , dmitry.torokhov@gmail.com, Arkadiusz Miskiewicz , Jens Axboe , linux-input@atrey.karlin.mff.cuni.cz, Alexey Starikovskiy , linux-usb-devel@lists.sourceforge.net, Jeff Chua , Meelis Roos , Janosch Machowinski , linux-pm@lists.osdl.org, Linux Kernel Mailing List , Adrian Bunk , linux-acpi@vger.kernel.org, "Eric W. Biederman" , Thomas Meyer , "Michael S. Tsirkin" , Andrew Morton List-Id: linux-input@vger.kernel.org On Fri, 9 Mar 2007, Ingo Molnar 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. Some day we may have modesetting support in the kernel for some graphics = hw, right now it's pretty damn spotty. Linus