From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Tettamanti Subject: Re: [PATCH] nvidiafb: allow ignoring EDID info Date: Thu, 8 Feb 2007 00:57:28 +0100 Message-ID: <20070207235728.GA28695@dreamland.darkstar.lan> References: <20070128160831.fb51347f.akpm@osdl.org> <21d7e9970701281612q56b694edp6efd1a5556dea3fe@mail.gmail.com> <20070128162907.370f5476.akpm@osdl.org> <21d7e9970701281639w57edc2efw4ba620d4c1bdcee7@mail.gmail.com> <20070130203301.GA15067@dreamland.darkstar.lan> <20070204201713.GA12867@dreamland.darkstar.lan> <20070205201824.GA13431@dreamland.darkstar.lan> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HEwfE-0003vI-UZ for linux-fbdev-devel@lists.sourceforge.net; Wed, 07 Feb 2007 15:57:25 -0800 Received: from jack.tiscali.it ([213.205.33.53]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HEwfE-00049p-Cn for linux-fbdev-devel@lists.sourceforge.net; Wed, 07 Feb 2007 15:57:24 -0800 Content-Disposition: inline In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: linux-fbdev-devel@lists.sourceforge.net Cc: Andrew Morton , Dave Airlie , linux-kernel@vger.kernel.org Il Mon, Feb 05, 2007 at 10:28:36PM +0100, Giuseppe Bilotta ha scritto: > On 2/5/07, Luca Tettamanti wrote: > > get-edid uses the BIOS, while the other two talk directly over the I2C > > bus. > > > > Try loading i2c-dev (I2C_CHARDEV); With i2cdump[1] you can read the EDID > > block, which resides at address 0x50: > > > > i2cdump N 0x50 (where N is the bus number) > > > > If you are unshure about bus number try with all the available > > /dev/i2c-* devices (you may want to unload HW monitor drivers first, so > > you don't poke at random stuff). [...] > There is no such thing as /dev/i2c* UNLESS I load nvidiafb. Of course :) > When I > load that, I get three busses (i2c-0, -1, and -2), but i2cdump N 0x50 > gives me a nice tableau of X's all around, for all values of N. There may be a bug in the serial clock line control, at least the code looks strange. I'll check and come back with a patch ASAP. Luca -- "Sei l'unica donna della mia vita". (Adamo) ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642