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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Mattia Dongili <malattia@linux.it>
Cc: Zhang Rui <rui.zhang@intel.com>, Len Brown <lenb@kernel.org>,
	"Wang, Zhenyu Z" <zhenyu.z.wang@intel.com>,
	linux-acpi <linux-acpi@vger.kernel.org>
Subject: Re: The Garbled screen issue on Sony laptops with two graphics (Intel and Nvidia)
Date: Mon, 16 Mar 2009 10:24:23 +0000	[thread overview]
Message-ID: <20090316102423.GA16889@srcf.ucam.org> (raw)
In-Reply-To: <20090311130847.GC13101@kamineko.org>

On Wed, Mar 11, 2009 at 10:08:47PM +0900, Mattia Dongili wrote:

> - some models have different magic numbers for the _DSM invocation, from
>   the DSDT I have available:
> 	DSDT.sz.xxx.dsl (some uknown model)
> 	DSDT.sz61mn-forXP.dsl
> 	DSDT.tt11lnb.dsl
> 	DSDT.z11vn.dsl
> 	DSDT.z90s.dsl
> 	VGN-SZ4XWNC-R0111N0.dsl
>   and for what I can see, z and tt have the same magic numbers while the
>   sz has different ones. So the code that calls _DSM will need to have
>   some DMI switch to make sure we are calling it with the right
>   parameters (for now supporting z and tt might be enough)

_DSM is "Device Specific Method". The magic numbers it requires are 
interface descriptions. How many of these machines have nvidia-based 
dual GPU architectures? Are the _DSM methods always attached to the 
nvidia device?

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  parent reply	other threads:[~2009-03-16 10:24 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-11  2:45 The Garbled screen issue on Sony laptops with two graphics (Intel and Nvidia) Zhang Rui
2009-03-11  2:46 ` Matthew Garrett
2009-03-11  7:29   ` Zhang Rui
2009-03-11  7:30     ` Zhang Rui
2009-03-11 12:47       ` Matthew Garrett
2009-03-11 13:08     ` Mattia Dongili
2009-03-16  5:46       ` Zhang Rui
2009-03-16 10:24       ` Matthew Garrett [this message]
2009-03-16 11:28         ` Mattia Dongili
2009-03-16 11:33           ` Matthew Garrett

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