From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karol Kozimor Subject: Re: resource for S3 suspend/resume of Radeon Date: Mon, 17 Mar 2003 16:34:35 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030317153434.GB3936@hell.org.pl> References: <1047912152.28830.32.camel@dutidad> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Return-path: Content-Disposition: inline In-Reply-To: <1047912152.28830.32.camel-1Jw6Eky0yc0@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: "Charl P. Botha" Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Thus wrote Charl P. Botha: > This patch to Linux kernel 2.4.20-ben8 has just been brought to my > attention: http://penguinppc.org/~benh/new_sleep.diff > > benh and ATI seem to have fixed the suspension code of the radeon. I > have looked at this (see the Radeon bits) and at Patrick Mochel's power > management architecture code and documentation and it does look like a > lot of this code could be used to make ACPI S3 (suspend to RAM) a > reality on Radeon-using laptops. Which radeon do you have in mind exactly? I use an M7 LW chip, and I get the following: both in 2.4.x and 2.5.x the display does not power-off when in S1 (which is, I believe, expected), and during S3 it poweroffs and comes back in, provided I pass the acpi_sleep=s3_bios option. The latter was only tested using VGA console, because AFAIK the framebuffer support in current 2.5 kernels is faulty (at least it didn'r work for me, and since I have problems with 2.5 that are more serious, I didn't investigate). Anyway, my Radeon seems to work quite fine. Best regards, -- Karol 'sziwan' Kozimor sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en