From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765377AbYCSVR6 (ORCPT ); Wed, 19 Mar 2008 17:17:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761962AbYCST7u (ORCPT ); Wed, 19 Mar 2008 15:59:50 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:36158 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761911AbYCST7i (ORCPT ); Wed, 19 Mar 2008 15:59:38 -0400 Date: Tue, 18 Mar 2008 23:52:03 +0100 From: Pavel Machek To: Linus Torvalds Cc: "Rafael J. Wysocki" , pm list , ACPI Devel Maling List , Alan Stern , David Brownell , Greg KH , Len Brown , LKML , Shaohua Li , Alexey Starikovskiy , Johannes Berg Subject: Re: suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6) Message-ID: <20080318225201.GA2115@elf.ucw.cz> References: <200803120129.25585.rjw@sisk.pl> <200803172317.33745.rjw@sisk.pl> <20080318130642.GA1609@elf.ucw.cz> <20080318130710.GB1609@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 2008-03-18 10:31:28, Linus Torvalds wrote: > > > On Tue, 18 Mar 2008, Pavel Machek wrote: > > > > On Tue 2008-03-18 14:06:42, Pavel Machek wrote: > > > > > > Confirmed, suspend slowness is in 2.6.25-rc6, too. It takes 15 seconds > > > to suspend/resume, while 2.6.24 takes 9. Thinkpad x60. > > > > IIRC 2.6.25-rc5 was "fast". > > Can you bisect it? There's only 343 commits between -rc5 and -rc6, > so it It will take a while. My .git directory is 7G, and I'd like to do a backup before playing with git. git gc does not exist here, so I guess I need to update git, too :-(. > should not take too long to check which commit it is. Even if it should > take 9 reboots to bisect it entirely, going just five or six will likely > narrow it down sufficiently that we can probably guess fairly well what > it's about. Hmm, it gets weirder. 2.6.25-rc5 was fast, and had small problem with backlight hotkeys did not work. 2.6.25-rc6 has backlight hotkeys somehow working, but closing/opening lid in X kills the backlight, making machine unusable. Hmm... commit 7c0ea45be4f114d85ee35caeead8e1660699c46f tree 0822ef23606a733e00bbf75d3e218b1e92abdd78 parent 2f44bbb495dd3e6d0209eff2257438ab9c570e5b author Zhao Yakui Tue, 11 Mar 2008 16:56:47 +0800 committer Len Brown Tue, 11 Mar 2008 22:20:19 -0400 ACPI: Ignore _BQC object when registering backlight device According to acpi spec , the objects of _BCL and _BCM are required if integrated LCD is present and supports brightness level .The _BQC is the optional object. So the _BQC object is ignored when the backlight device is registered in ACPI video driver. http://bugzilla.kernel.org/show_bug.cgi?id=10206 Signed-off-by: Zhao Yakui Signed-off-by: Zhang Rui Signed-off-by: Len Brown when did this go in? Pretty recently, right? And that means that ACPI backlight driver is now used on machines where it was not used before...? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html pomozte zachranit klanovicky les: http://www.ujezdskystrom.info/