linux-kernel - Re: [GIT PATCH] ACPI patches for 2.6.23-rc1

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Date:	Thu, 26 Jul 2007 14:18:34 -0400
From:	Len Brown <lenb@...nel.org>
To:	david@...g.hm
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PATCH] ACPI patches for 2.6.23-rc1


> > I was actually asking how somebody's _system_ has been degraded
> > by this change -- but I haven't got an objective answer to that one yet.
> 
> how about the fact that Linus found the problem becouse his system didn't 
> work right?

I guess I missed that message.  What system didn't work right,
and how did it fail?


> > The context for this is the EPA ENERGY STAR specification for Computers,
> > which went into effect this month.  This spec says that systems which
> > can not automatically go into suspend within 15 minutes of idle
> > can _not_ earn a sticker.  No sticker, no client computer sales to governments.
> > If Linux can't get STR working, broadly deployed, and enabled by default,
> > then our plans for world domination are going to take a significant hit.
> 
> isn't the sticker and specification for hardware? but in any case not all 
> hardware needs to get that sticker.

No, the sticker is for the entire system (HW+SW) as shipped to the customer.
ie. It is possible for the same hardware solution running Windows
to earn a sticker and land a sale, while Linux fails to earn a sticker
and loses the contract.

You're right, not all systems need to earn the sticker.
Indeed, ENERGY STAR is supposed to be a "premium" brand.
However, several governments disqualify bids for large
contracts if they do not meet ENERGY STAR.

> > yes, I understand that there are SMP systems that want ACPI and don't
> > need sleep or CONFIG_HOGPLUG_CPU.  However, I don't see major distros
> > shipping kernels to their server customers that way, so I didn't think
> > it would offend a significant part of the community's sense of freedom
> > if this config option were removed.  Maybe I was wrong.
> 
> distros aren't everything

Apparently a market for more config options of is alive and well.
Thank you for helping make the future of Linux more clear to me.

-Len
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