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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Aaron Lu <aaron.lu@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
	Julian Wollrath <jwollrath@web.de>,
	linux-acpi@vger.kernel.org
Subject: Re: [Regression]: Changing brightness does not work with v3.16-rc4
Date: Wed, 16 Jul 2014 02:43:42 +0200	[thread overview]
Message-ID: <2231725.PEI454q0UP@vostro.rjw.lan> (raw)
In-Reply-To: <53C53E89.2020505@intel.com>

On Tuesday, July 15, 2014 10:45:29 PM Aaron Lu wrote:
> On 07/15/2014 10:05 PM, Hans de Goede wrote:

[cut]

> > On 07/15/2014 04:00 PM, Aaron Lu wrote:
> > 
> >  > If we have to consider the following config:
> >  > 1 ACPI backlight interface works(or can work with some cmdline option);
> > 
> > And the BIOS advertises native win8 support.
> 
> Right.
> So this condition should be:
> 1 ACPI backlight interface works in Win8 mode;
> 
> This means, for Julian's system, the commit 751109aad583 doesn't need to
> be reverted as the ACPI backlight interface on his system only works
> when the acpi_osi="!Windows 2012" is added. In that case, the
> video.use_native_backlight=X doesn't make any difference anymore.

But Julian reports that he needs to revert that commit to make things work
as before for him.  What gives?

Rafael


  reply	other threads:[~2014-07-16  0:25 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-12 16:06 [Regression]: Changing brightness does not work with v3.16-rc4 Julian Wollrath
2014-07-12 16:24 ` Julian Wollrath
2014-07-14 18:21   ` Rafael J. Wysocki
2014-07-14 18:34     ` Julian Wollrath
2014-07-14 19:02       ` Rafael J. Wysocki
2014-07-14 19:10         ` Rafael J. Wysocki
2014-07-14 18:56           ` Julian Wollrath
2014-07-14 19:17             ` Rafael J. Wysocki
2014-07-15  6:06               ` Aaron Lu
2014-07-15 12:27                 ` Rafael J. Wysocki
2014-07-15 14:00                   ` Aaron Lu
2014-07-15 14:05                   ` Hans de Goede
2014-07-15 14:45                     ` Aaron Lu
2014-07-16  0:43                       ` Rafael J. Wysocki [this message]
2014-07-16  6:29                         ` Hans de Goede
2014-07-16  7:19                           ` Aaron Lu
2014-07-16  8:13                             ` Hans de Goede
2014-07-16  8:30                               ` Aaron Lu
2014-07-16  8:35                               ` Hans de Goede
2014-07-16 11:50                                 ` Julian Wollrath
2014-07-16 11:52                                   ` Hans de Goede
2014-07-15 21:38                 ` Julian Wollrath
2014-07-16  2:36             ` Aaron Lu
2014-07-16 11:36               ` Julian Wollrath
2014-07-14  2:06 ` Aaron Lu
2014-07-14 12:42   ` Julian Wollrath

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