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

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On Wednesday, 19 of March 2008, Alexey Starikovskiy wrote:
> Pavel Machek wrote:
> > Hi!
> > 
> >>> Ok, 7c0... is innocent. Reverting not only the mdelay, but also rest
> >>> of drivers/acpi/ec.c patch fixed the
> >>> "rc6-breaks-backlight-in-X-over-lid-close", good.
> >> Can you clarify a bit?
> >>
> >> Do you mean that the full revert of 2c81ce4 that already got committed is 
> >> sufficient for you, or do you need to totally undo everything we've done 
> >> to ec.c since -rc5, and thus also to revert the _other_ revert we did (in 
> >> 4af8e10a6c57e7292862bd1703712f0565c7e429)?
> > 
> > I did some more testing, and realized I was wrong. We need to totally
> > undo everything we've done to ec.c since -rc5... (that has small
> > sideffect of brightness up/down keys no longer working -- regression
> > since 2.6.24, but saves us from "backlight gone after
> > closing/reopening lid" which is _NASTY_ regression from 2.6.25-rc5).
> > 
> > ACPI sucks.
> > 
> > I.e. this patch:
> > 
> > 
> > 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.

Well, and what's the underlying issue?

Rafael
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