linux-kernel - Re: [GIT PULL] PM updates for 2.6.33

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Message-ID: <20091221090147.GA1405@ucw.cz>
Date:	Mon, 21 Dec 2009 10:01:47 +0100
From:	Pavel Machek <pavel@....cz>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [GIT PULL] PM updates for 2.6.33

On Sun 2009-12-06 22:00:53, Dmitry Torokhov wrote:
> On Sun, Dec 06, 2009 at 09:26:00PM -0800, Arjan van de Ven wrote:
> > On Sun, 6 Dec 2009 18:27:56 -0800
> > Dmitry Torokhov <dmitry.torokhov@...il.com> wrote:
> > 
> > > On Sun, Dec 06, 2009 at 04:55:51PM -0800, Arjan van de Ven wrote:
> > > > On Sun, 6 Dec 2009 14:54:48 -0800
> > > > Dmitry Torokhov <dmitry.torokhov@...il.com> wrote:
> > > > 
> > > > > > isn't serio the PS/2 stuff?
> > > > > 
> > > > > Yes, that's your PS/2 mouse (rather touchpad) and the delay comes
> > > > > from device reset (needed by some keyboard controllers - I
> > > > > remember HP -or it and keyboard will be dead at resume).
> > > > 
> > > > and I have a HP laptop... so this makes perfect sense.
> > > > Thanks for the explenation!
> > > > 
> > > 
> > > Well, we do it for everyone, it's just a particular series of HPs
> > > forced us to add it.
> > > 
> > wonder if it should be a DMI based quirk instead...
> > 
> 
> I have not received reports where it causes harm or reduces
> functionality so I'd prefer having it by default and not try to race
> with manufacturers.

Well, it slows down everyone... and people are actually testing with
linux, so it makes this problem more common on new systems.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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