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From: Pavel Machek <pavel@suse.cz>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
	pm list <linux-pm@lists.linux-foundation.org>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	Alan Stern <stern@rowland.harvard.edu>,
	David Brownell <david-b@pacbell.net>, Greg KH <greg@kroah.com>,
	Len Brown <lenb@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	Shaohua Li <shaohua.li@intel.com>,
	Alexey Starikovskiy <astarikovskiy@suse.de>,
	Johannes Berg <johannes@sipsolutions.net>
Subject: Re: suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6)
Date: Tue, 18 Mar 2008 23:52:03 +0100	[thread overview]
Message-ID: <20080318225201.GA2115@elf.ucw.cz> (raw)
In-Reply-To: <alpine.LFD.1.00.0803181028400.3020@woody.linux-foundation.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 <yakui.zhao@intel.com> Tue, 11 Mar 2008 16:56:47
+0800
committer Len Brown <len.brown@intel.com> 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 <yakui.zhao@intel.com>
    Signed-off-by: Zhang Rui  <rui.zhang@intel.com>
    Signed-off-by: Len Brown <len.brown@intel.com>


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/

  reply	other threads:[~2008-03-19 21:17 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-12  0:29 Suspend and hibernation patchset Rafael J. Wysocki
2008-03-17 22:17 ` Suspend and hibernation patchset against -rc6 Rafael J. Wysocki
2008-03-18 12:07   ` Pavel Machek
2008-03-18 13:06   ` suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6) Pavel Machek
2008-03-18 13:07     ` Pavel Machek
2008-03-18 17:07       ` Pavel Machek
2008-03-18 18:48         ` Alexey Starikovskiy
2008-03-18 23:00           ` Pavel Machek
2008-03-18 17:31       ` Linus Torvalds
2008-03-18 22:52         ` Pavel Machek [this message]
2008-03-18 23:05           ` Pavel Machek
2008-03-19  0:40           ` Linus Torvalds
2008-03-19 10:19             ` Pavel Machek
2008-03-19 14:42               ` Linus Torvalds
2008-03-19 20:24                 ` Pavel Machek
2008-03-19 10:56             ` Pavel Machek
2008-03-19 11:48             ` Pavel Machek
2008-03-19 14:47               ` Linus Torvalds
2008-03-19 14:54                 ` Pavel Machek
2008-03-19 20:23                 ` Pavel Machek
2008-03-19 20:35                   ` Alexey Starikovskiy
2008-03-19 20:47                     ` Rafael J. Wysocki
2008-03-19 20:58                     ` Pavel Machek
2008-03-19 21:07                       ` Alexey Starikovskiy
2008-03-19 21:43                       ` Rafael J. Wysocki
2008-03-19 21:56                         ` [linux-pm] " Rafael J. Wysocki
2008-03-19 21:57                         ` Pavel Machek
2008-03-19 21:58                           ` Rafael J. Wysocki
2008-03-19 22:02                             ` Pavel Machek
2008-03-19 22:13                               ` Rafael J. Wysocki
2008-03-19 22:21                                 ` Pavel Machek
2008-03-20 15:06           ` Henrique de Moraes Holschuh
2008-03-20 15:53             ` Pavel Machek
2008-03-18 23:20         ` Pavel Machek
2008-03-18 23:45           ` Alexey Starikovskiy
2008-03-19 11:49             ` Pavel Machek
2008-03-20 15:19           ` Henrique de Moraes Holschuh
2008-03-20 15:50             ` Alexey Starikovskiy
2008-03-20 22:26               ` Henrique de Moraes Holschuh
2008-03-18 23:43         ` Pavel Machek
2008-03-26 23:51   ` Suspend and hibernation patchset against -rc7 Rafael J. Wysocki
2008-04-02  0:27     ` Suspend and hibernation patchset against -rc8 Rafael J. Wysocki
2008-04-13 17:39       ` Suspend and hibernation patchset against -rc9 Rafael J. Wysocki

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