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Open Source and information security mailing list archives
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Date: Mon, 5 Feb 2007 21:18:24 +0100 From: Luca Tettamanti <kronos@...ple.it> To: Giuseppe Bilotta <giuseppe.bilotta@...il.com> Cc: linux-fbdev-devel@...ts.sourceforge.net, Andrew Morton <akpm@...l.org>, Dave Airlie <airlied@...il.com>, linux-kernel@...r.kernel.org Subject: Re: [Linux-fbdev-devel] [PATCH] nvidiafb: allow ignoring EDID info Il Sun, Feb 04, 2007 at 10:17:08PM +0100, Giuseppe Bilotta ha scritto: > On 2/4/07, Luca Tettamanti <kronos@...ple.it> wrote: > >Giuseppe, can you send me the EDID block of your monitor? > > I'd gladly do it, if I knew how to retrieve it ... because apparently, > get-edid doesn't work, even though both the nv driver for X and > nvidiafb manage to retrieve it. 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). Luca [1] lm-sensors package, at least on Debian. -- La somma dell'intelligenza sulla terra è una costante. La popolazione è in aumento. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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