From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Giuseppe Bilotta" Subject: Re: [Linux-fbdev-devel] [PATCH] nvidiafb: allow ignoring EDID info Date: Tue, 13 Feb 2007 10:25:41 +0100 Message-ID: References: <21d7e9970701281639w57edc2efw4ba620d4c1bdcee7@mail.gmail.com> <20070130203301.GA15067@dreamland.darkstar.lan> <20070204201713.GA12867@dreamland.darkstar.lan> <20070205201824.GA13431@dreamland.darkstar.lan> <20070207234837.GA27822@dreamland.darkstar.lan> <20070211181743.GA15801@dreamland.darkstar.lan> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20070211181743.GA15801@dreamland.darkstar.lan> Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: Cc: James Simmons , linux-fbdev-devel@lists.sourceforge.net, Andrew Morton , Dave Airlie , linux-kernel@vger.kernel.org (some of you might get this mail in double copy , sorry) On 2/11/07, Luca Tettamanti wrote: > Sorry for the delay. Ditto! It also seemed that my kernel compiling sk1llz had gone AWL, I couldn't get the newly compiled kernel to run, until I realized the initrd.img was mislinked. Anyway. Your patch has an immediately visible effect of reducing snow: it seems that now that you fixed the access bug the EDID is properly /not/ used. dmesg | grep nvidiafb now claims the following: """ nvidiafb: Device ID: 10de0112 nvidiafb 0000:01:00.0: Unable to read EDID block. nvidiafb 0000:01:00.0: Unable to read EDID block. nvidiafb 0000:01:00.0: Unable to read EDID block. (it actually gave the "I2C probe failed ..." message on console, but it's not appearing in the dmesg, obviously, since it's a simple printk) nvidiafb 0000:01:00.0: Unable to read EDID block. nvidiafb 0000:01:00.0: Unable to read EDID block. nvidiafb 0000:01:00.0: Unable to read EDID block. nvidiafb: CRTC 1 is currently programmed for DFP nvidiafb: Using DFP on CRTC 1 nvidiafb: Panel size is 1600 x 1200 nvidiafb: Panel is TMDS nvidiafb: MTRR set to ON nvidiafb: Flat panel dithering disabled nvidiafb: PCI nVidia NV11 framebuffer (32MB @ 0xE0000000) """ So the EDID still seems to be totally inaccessible (which means I can't really tell why/when/where it's b0rked). =46inally, as I mentioned, console still has a little snow. It's barely perceptible in common console usage because the monitor is mostly black, but can get annoying with fullscreen apps =E0 la mc. This extra snow *might* be the effect of bandwidth limits Antonino Daplas was referring to in this lkml message: http://lkml.org/lkml/2005/10/1/7 but I'll have to enquire on this further. --=20 Giuseppe "Oblomov" Bilotta