From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with archive (Exim 4.43)
	id 1OQCX9-0002ls-1X
	for mharc-grub-devel@gnu.org; Sun, 20 Jun 2010 00:53:27 -0400
Received: from [140.186.70.92] (port=39484 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1OQCX5-0002lf-Ut
	for grub-devel@gnu.org; Sun, 20 Jun 2010 00:53:24 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69)
	(envelope-from <vojta@math.berkeley.edu>) id 1OQCX4-0004Jt-Gx
	for grub-devel@gnu.org; Sun, 20 Jun 2010 00:53:23 -0400
Received: from cm04fe.ist.berkeley.edu ([169.229.218.145]:40616)
	by eggs.gnu.org with esmtp (Exim 4.69)
	(envelope-from <vojta@math.berkeley.edu>) id 1OQCX4-0004Jj-CO
	for grub-devel@gnu.org; Sun, 20 Jun 2010 00:53:22 -0400
Received: from adsl-71-131-186-90.dsl.sntc01.pacbell.net ([71.131.186.90]
	helo=localhost)
	by cm04fe.ist.berkeley.edu with esmtpsa (TLSv1:AES128-SHA:128)
	(Exim 4.71) (auth login:vojta@math.berkeley.edu)
	(envelope-from <vojta@math.berkeley.edu>)
	id 1OQCWz-0006Oj-Dk; Sat, 19 Jun 2010 21:53:18 -0700
Date: Sat, 19 Jun 2010 21:52:58 -0700
From: Paul Vojta <vojta@math.berkeley.edu>
To: The development of GNU GRUB <grub-devel@gnu.org>
Message-ID: <20100620045258.GA1083@math.berkeley.edu>
References: <4BF92009.2030803@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4BF92009.2030803@gmail.com>
User-Agent: Mutt/1.5.20 (2009-06-14)
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3)
Subject: Re: Vendor power-on button
X-BeenThere: grub-devel@gnu.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: The development of GNU GRUB <grub-devel@gnu.org>
List-Id: The development of GNU GRUB <grub-devel.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/grub-devel>,
	<mailto:grub-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/grub-devel>
List-Post: <mailto:grub-devel@gnu.org>
List-Help: <mailto:grub-devel-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/grub-devel>,
	<mailto:grub-devel-request@gnu.org?subject=subscribe>
X-List-Received-Date: Sun, 20 Jun 2010 04:53:25 -0000

On Sun, May 23, 2010 at 02:31:05PM +0200, Vladimir '??-coder/phcoder' Serbinenko wrote:
> Hello, all. I've just merged vendor power-on button support into
> mainline. Here is extract from manual:

[snip]

> If you have a laptop which has a similar feature could you figure your
> address and contribute?

I have a Dell XPS M1330, and GRUB_BUTTON_CMOS_ADDRESS=85:3 works also for me.

However, I do have one question.

I have it set up now to boot directly into Linux when I use the main power-on
button, and I use the auxiliary button to get a boot menu, defaulting
to Windows.  But when I boot Windows using that button, it starts up
a MediaDirect setup screen (in addition to regular Windows).  Would it be
possible to (optionally) clear the vendor power-on button bit in the
cmos before booting?

--Paul Vojta, vojta@math.berkeley.edu