From: Matthew Garrett <mjg59@srcf.ucam.org>
To: joeyli <jlee@suse.com>
Cc: seth.forshee@canonical.com, Richard Purdie <rpurdie@rpsys.net>,
linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
Corentin Chary <corentin.chary@gmail.com>
Subject: Re: [PATCH] backlight: add support for disabling backlights via sysfs
Date: Fri, 29 Jun 2012 03:57:24 +0100 [thread overview]
Message-ID: <20120629025724.GB18605@srcf.ucam.org> (raw)
In-Reply-To: <1340937839.6196.212.camel@linux-s257.site>
On Fri, Jun 29, 2012 at 10:43:59AM +0800, joeyli wrote:
> http://msdn.microsoft.com/en-us/windows/hardware/gg487382.aspx
>
> In WDDM architecture, in spec p.5, there have a "Monitor" driver to
> check the WDDM driver support brightness DDI, if not, then it will use
> standard acpi method to control brightness.
What's the interaction between GPU drivers and platform drivers? For
instance, on acer systems that have backlight control via WMI, does
Windows use WMI, the GPU driver or ACPI?
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2012-06-29 2:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-28 19:07 [PATCH] backlight: add support for disabling backlights via sysfs Seth Forshee
2012-06-28 19:10 ` Matthew Garrett
2012-06-28 19:30 ` Seth Forshee
2012-06-28 19:36 ` Matthew Garrett
2012-06-28 21:16 ` Seth Forshee
2012-06-28 21:19 ` Matthew Garrett
2012-06-29 2:43 ` joeyli
2012-06-29 2:57 ` Matthew Garrett [this message]
2012-06-29 7:18 ` joeyli
2012-06-29 12:24 ` Corentin Chary
2012-06-29 14:11 ` Seth Forshee
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