linux-kernel - Re: suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6)

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Message-Id: <200803192313.39664.rjw@sisk.pl>
Date:	Wed, 19 Mar 2008 23:13:38 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Pavel Machek <pavel@....cz>
Cc:	Alexey Starikovskiy <astarikovskiy@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	David Brownell <david-b@...bell.net>, Greg KH <greg@...ah.com>,
	Len Brown <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Shaohua Li <shaohua.li@...el.com>,
	Johannes Berg <johannes@...solutions.net>
Subject: Re: suspend slow in 2.6.25-rc6 (was Re: Suspend and hibernation patchset against -rc6)

On Wednesday, 19 of March 2008, Pavel Machek wrote:
> On Wed 2008-03-19 22:58:59, Rafael J. Wysocki wrote:
> > On Wednesday, 19 of March 2008, Pavel Machek wrote:
> > > 
> > > > > >> Revert ec.c to 2.6.25-rc5 state:
> > > > > >>
> > > > > >> * this fixes backlight after closing/reopening the lid while in X on
> > > > > >> thinkpad x60
> > > > > >>
> > > > > >> * unfortunately it breaks fn-home/end keyboard brightness control
> > > > > > It should also break volume up/down/mute keys. Essentially all the keys on Thinkpad.
> > > > > > And it would also be regression to 2.6.24 level.
> > > > > 
> > > > > As I explained above.
> > > > > 
> > > > > Unfortunately, applying this means I loose screen as soon as I
> > > > > close/reopen lid. 2.6.24 did not behave like that. And it makes my
> > > > > machine mostly unusable -- as soon as you try to carry it away, you
> > > > > loose video. BAD.
> > > > 
> > > > Can you text the current -git (preferably without anything on top) pretty please?
> > > 
> > > Did anything relevant change in the last 8 hours or so?
> > 
> > No, it didn't.
> > 
> > > My scripts tell me there's nothing to pull:
> > > 
> > > Done counting 441 objects.
> > > Result has 304 objects.
> > > Deltifying 304 objects.
> > >  100% (304/304) done
> > > Total 304, written 304 (delta 236), reused 121 (delta 75)
> > > Fetching pack (head and objects)...
> > > Fetching tags...
> > > Up to date.
> > > 
> > > Applying changes...
> > > Branch already fully merged.
> > > pavel@amd:~$
> > 
> > Still, the current -git has the offending patch reverted and you're seeing a
> > regression nevertheless.
> > 
> > Is that correct?
> 
> Yes.
> 
> (Or more precisely, there are two regressions:
> 
> * s2ram 5 seconds slower -- fixed by current git

OK

> * backlight goes out in X -- not fixed by current git)

Can you please open a bugzilla entry for this one and make it block
bug #9832?  [That will make the tracking of it a bit easier.]

Thanks,
Rafael
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