From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Subject: Re: radeonfb: DDC read wrong? Date: Tue, 27 Jun 2006 21:11:24 +0200 Message-ID: <20060627191124.GC14392@dreamland.darkstar.lan> References: <20060620140152.GB5414@polar.elf12.net> <449D2C02.8010101@gmail.com> <20060624174731.GA6091@polar.elf12.net> <449DD21E.9070906@gmail.com> <20060626170158.GA2331@polar.elf12.net> <44A049D5.5030702@gmail.com> 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 1FvIxs-0003Gp-CR for linux-fbdev-devel@lists.sourceforge.net; Tue, 27 Jun 2006 12:11:12 -0700 Received: from mail-relay-1.tiscali.it ([213.205.33.41]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1FvIxp-0004gw-6Y for linux-fbdev-devel@lists.sourceforge.net; Tue, 27 Jun 2006 12:11:12 -0700 Content-Disposition: inline In-Reply-To: <44A049D5.5030702@gmail.com> 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: Robert Siemer Il Tue, Jun 27, 2006 at 04:55:49AM +0800, Antonino A. Daplas ha scritto: > Robert Siemer wrote: > > On Sun, Jun 25, 2006 at 08:00:30AM +0800, Antonino A. Daplas wrote: > >> Robert Siemer wrote: > >>> On Sat, Jun 24, 2006 at 08:11:46PM +0800, Antonino A. Daplas wrote: > >>>> Robert Siemer wrote: > >> Disregard the previous patch, I forgot to adjust the checksum. > >> Try this instead... > > > > The patch works in the way that I see a console without a video= param. > > > > Please answer my questions: > > -Does the EDID block that reads the kernel get somehow exported or > > used somewhere else (in kernel maybe)? > > For drivers that use the EDID, it gets converted into struct fb_monspecs. > Part of this structure is a private mode database > (cat /sys/class/graphics/fb0/modes). With radeonfb you can also access the raw edid block(s): /sys/class/graphics/fb0/device/edid1 /sys/class/graphics/fb0/device/edid2 (for second monitor, if any). > > -Which mode gets choosen from the resulting set of resolutions? I mean, > > based on what? > > Depends on the driver. A combination of the 'first detailed timing > is preferred' flag and a detailed timing is the initial startup mode. > As for radeonfb, I think it just grabs the first detailed timing for > the initial mode. Yes, the selection goes like this: - mode option - 1st detailed block - 1st mode in the db Luca -- Home: http://kronoz.cjb.net Se alla sera, dopo una strepitosa vittoria, guardandoti allo specchio dovessi notare un secondo paio di palle, che il tuo cuore non si riempia d'orgoglio, perche` vuol dire che ti stanno inculando -- Saggio Cinese 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