From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Albert Vilella <avilella@gmail.com>
Cc: linux-acpi@vger.kernel.org
Subject: Re: another discrete nvidia switch on/off for an assortment of laptops
Date: Wed, 6 Jan 2010 14:33:15 +0000 [thread overview]
Message-ID: <20100106143315.GA13984@srcf.ucam.org> (raw)
In-Reply-To: <358f4d650912291430u5e266764jd98a814621659c1@mail.gmail.com>
On Tue, Dec 29, 2009 at 10:30:47PM +0000, Albert Vilella wrote:
> Hi again,
>
> In this occasion not providing a working module, but just a grep to
> show 5 different laptop
> models that use an almost identical ACPI call to report on the
> discrete nvidia graphics switch:
The NVIF interface is not the correct one to use. There's a _DSM method
on the Nvidia PCI device that will call the appropriate methods. nouveau
should support this in the current kernels - right now it'll just set
the graphics to whatever state the BIOS has programmed. A module
parameter to change the default might be interesting.
If you want to do this with the nvidia binary driver, you'll need to get
nvidia to add support.
--
Matthew Garrett | mjg59@srcf.ucam.org
prev parent reply other threads:[~2010-01-06 14:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-29 22:30 another discrete nvidia switch on/off for an assortment of laptops Albert Vilella
2009-12-30 5:44 ` Len Brown
2009-12-30 9:32 ` Norbert Preining
2010-01-06 14:33 ` Matthew Garrett [this message]
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