Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751124AbVJBXfk (ORCPT ); Sun, 2 Oct 2005 19:35:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751141AbVJBXfk (ORCPT ); Sun, 2 Oct 2005 19:35:40 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:8911 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751124AbVJBXfk (ORCPT ); Sun, 2 Oct 2005 19:35:40 -0400 Date: Mon, 3 Oct 2005 01:35:16 +0200 From: Pavel Machek To: Benjamin Herrenschmidt Cc: Jan Spitalnik , kernel list , seife@suse.de Subject: Re: thinkpad suspend to ram and backlight Message-ID: <20051002233516.GB6035@elf.ucw.cz> References: <20051002175703.GA3141@elf.ucw.cz> <200510022007.29660.lkml@spitalnik.net> <20051002182354.GA2031@elf.ucw.cz> <1128294674.8267.65.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1128294674.8267.65.camel@gaston> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1420 Lines: 36 Hi! > > > > When I suspend to RAM on x32, backlight is not turned off. (And, IIRC, > > > > video chips is not turned off, too). Unfortunately, backlight is not > > > > turned even when lid is closed. I know some patches were floating > > > > around to solve that... but I can't find them now. Any ideas? > > > > > > if your thinkpad has ati radeon, you can use this: > > > > > > http://www.thinkwiki.org/wiki/Radeontool > > > > radeontool light off before suspend indeed works, but I'd like to > > solve it properly. > > Well, it depends what you call "properly". I'd like it to work as well as it does for PPC :-). > There are indeed some patches > floating around that put the radeon chip in D2 state, that seem to > help. I found that patch with a little help from the list. Unfortunately, it makes things worse (not better) on my X32. [There was another regression here. With 2.6.8 or so, backlight was off during S3 sleep (but chip still running and eating power). With 2.6.14-rc3, not only chip is running, but backlight is forced to max to add an insult to the injury]. Pavel -- if you have sharp zaurus hardware you don't need... you know my address - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/