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From: Seth Forshee <seth.forshee@canonical.com>
To: Corentin Chary <corentin.chary@gmail.com>
Cc: "Richard Schütz" <r.schtz@t-online.de>,
	"David Herrmann" <dh.herrmann@googlemail.com>,
	"Matthew Garrett" <mjg59@srcf.ucam.org>,
	"Andrzej Prochyra" <andrzej@prochyra.name>,
	platform-driver-x86@vger.kernel.org,
	linux-kernel@vger.kernel.org, "Zhang, Rui" <rui.zhang@intel.com>
Subject: Re: [PATCH] Platform: samsung-laptop: add DMI information for Samsung N150 Plus
Date: Thu, 5 Jan 2012 09:08:32 -0600	[thread overview]
Message-ID: <20120105150832.GA25386@ubuntu-macmini> (raw)
In-Reply-To: <CAHR064iOA4Xo2EZVR686qokoVTZUN0sFns7uoOcL9cQD1tWxHQ@mail.gmail.com>

On Thu, Jan 05, 2012 at 08:18:07AM +0100, Corentin Chary wrote:
> On Wed, Jan 4, 2012 at 9:51 PM, Seth Forshee <seth.forshee@canonical.com> wrote:
> > On Thu, Dec 29, 2011 at 12:49:41PM +0100, Corentin Chary wrote:
> >> And that's ? Because new laptops that use SABI seems to have a working
> >> acpi_video0.
> >> Currently, N1{4,5}* seems to be affected.
> >
> > You can add the NF310 to the list of machines without a working
> > acpi_video0. The disassembled DSDT is attached, and the backlight
> > control methods are a bit puzzling. _BCM seems to only accept values
> > that are multiples of 10, but _BCL returns several values that do not
> > meet this criterion. However, when _BCM is called with any of the values
> > from _BCL, even the ones that aren't multiples of 10, _BQC returns the
> > corresponding value. I must be missing something.
> >
> > At any rate, no matter the value given to _BCM the brightness does not
> > change.
> 
> What is the DMI string for this one ?

NF110/NF210/NF310

> intel_backlight don't work either ?

intel_backlight does work, better than the SABI interface in fact. But
the Xorg driver prefers acpi_video0 to intel_backlight, so having a
working intel_backlight isn't doing much good.

  reply	other threads:[~2012-01-05 15:08 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-22 22:19 [PATCH] Platform: samsung-laptop: add DMI information for Samsung N150 Plus Andrzej Prochyra
2011-12-23 14:15 ` Corentin Chary
2011-12-24 14:12   ` Andrzej Prochyra
2011-12-24 14:20     ` Matthew Garrett
2011-12-24 14:28       ` David Herrmann
2011-12-26  9:49         ` Corentin Chary
2011-12-26 10:22           ` David Herrmann
2011-12-29 10:23             ` Corentin Chary
2011-12-29 11:45               ` Richard Schütz
2011-12-29 11:49                 ` Corentin Chary
2011-12-29 14:02                   ` David Herrmann
2012-01-04 20:51                   ` Seth Forshee
2012-01-05  7:18                     ` Corentin Chary
2012-01-05 15:08                       ` Seth Forshee [this message]
2012-01-07 14:12                         ` [PATCH] ACPI / Video: blacklist some samsung laptops Corentin Chary
2012-01-08 10:46                           ` Seth Forshee
2012-01-08 12:36                             ` Corentin Chary
2012-01-08 13:40                               ` Seth Forshee
2012-01-09 16:39                           ` David Herrmann
2012-01-09 22:34                             ` Andrzej Prochyra
2011-12-26  9:51     ` [PATCH] Platform: samsung-laptop: add DMI information for Samsung N150 Plus Corentin Chary
2011-12-26 12:33       ` Matthew Garrett
2012-01-23 10:41         ` Corentin Chary

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