From: Matthew Garrett <matthew.garrett@nebula.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Aaron Lu <aaron.lu@intel.com>,
ACPI Devel Mailing List <linux-acpi@vger.kernel.org>,
Seth Forshee <seth.forshee@canonical.com>,
"Lee, Chun-Yi" <joeyli.kernel@gmail.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Len Brown <lenb@kernel.org>,
Igor Gnatenko <i.gnatenko.brain@gmail.com>,
Yves-Alexis Perez <corsac@debian.org>,
Felipe Contreras <felipe.contreras@gmail.com>,
Lee Chun-Yi <jlee@novell.com>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Subject: Re: [PATCH 2/2] ACPI / video / i915: Remove ACPI backlight if firmware expects Windows 8
Date: Mon, 9 Sep 2013 15:38:46 +0000 [thread overview]
Message-ID: <1378741125.17982.1.camel@x230.lan> (raw)
In-Reply-To: <20130909152118.GG27291@phenom.ffwll.local>
On Mon, 2013-09-09 at 17:21 +0200, Daniel Vetter wrote:
> If Win8 is as broken as we are I'm ok with the module option. It just
> sounded to me like right now we don't know of a way to make all machines
> somewhat happy, combined with the other pile of random backlight issues
> the assumption that we do something (maybe something a bit racy) that
> windows doesn't do isn't too far-fetched. So I'm not wary of the machines
> where the aml is busted for acpi_os=win8, but for the others where this
> broke stuff.
Windows 8 isn't broken because (as far as we can tell) the Intel drivers
under Windows 8 never use the ACPI backlight set function. Of course, it
would be nice to have that confirmed by Intel.
--
Matthew Garrett <matthew.garrett@nebula.com>
next prev parent reply other threads:[~2013-09-09 15:38 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-09 8:37 [PATCH 0/2] Rework ACPI video driver Aaron Lu
2013-09-09 8:40 ` [PATCH 1/2] ACPI / video: seperate backlight control and event interface Aaron Lu
2013-09-10 5:23 ` Igor Gnatenko
2013-09-09 8:42 ` [PATCH 2/2] ACPI / video / i915: Remove ACPI backlight if firmware expects Windows 8 Aaron Lu
2013-09-09 9:32 ` Daniel Vetter
2013-09-09 12:16 ` Rafael J. Wysocki
2013-09-09 15:21 ` Daniel Vetter
2013-09-09 15:38 ` Matthew Garrett [this message]
2013-09-09 20:23 ` Rafael J. Wysocki
2013-09-10 13:53 ` Jani Nikula
2013-09-10 13:56 ` Matthew Garrett
2013-09-10 14:21 ` Jani Nikula
2013-09-10 14:21 ` Matthew Garrett
2013-09-10 19:23 ` Rafael J. Wysocki
2013-09-11 1:32 ` Aaron Lu
2013-09-11 8:45 ` Jani Nikula
2013-09-11 8:45 ` Matthew Garrett
2013-09-11 9:09 ` Yves-Alexis Perez
2013-09-11 10:29 ` Jani Nikula
2013-09-11 10:30 ` Matthew Garrett
2013-09-12 2:26 ` Aaron Lu
2013-09-10 6:30 ` Aaron Lu
2013-09-09 11:44 ` Igor Gnatenko
2013-09-10 3:27 ` Aaron Lu
2013-09-10 5:13 ` Igor Gnatenko
2013-09-10 5:16 ` Aaron Lu
2013-09-10 5:22 ` Igor Gnatenko
2013-09-10 5:42 ` Aaron Lu
2013-09-10 5:23 ` Igor Gnatenko
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