From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: The Garbled screen issue on Sony laptops with two graphics (Intel and Nvidia) Date: Mon, 16 Mar 2009 10:24:23 +0000 Message-ID: <20090316102423.GA16889@srcf.ucam.org> References: <1236739527.2820.178.camel@rzhang-dt> <20090311024652.GA14493@srcf.ucam.org> <1236756550.2820.218.camel@rzhang-dt> <20090311130847.GC13101@kamineko.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:38303 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752610AbZCPKYa (ORCPT ); Mon, 16 Mar 2009 06:24:30 -0400 Content-Disposition: inline In-Reply-To: <20090311130847.GC13101@kamineko.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Mattia Dongili Cc: Zhang Rui , Len Brown , "Wang, Zhenyu Z" , linux-acpi 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