[mythtv-users] OT: Idea for possible workaround to stop bogus EDID data from messing up MythTV

Michael T. Dean mtdean at thirdcontact.com
Thu Oct 11 17:58:42 UTC 2007

On 10/11/2007 01:55 PM, Christopher David Petersen wrote:
> I have a Olevia LT26HVE LCD TV, that I believe is providing bogus EDID
> information to my video card (xdpyinfo reports the screen size as
> 40x30mm: wrong size, wrong aspect ratio).
> Assuming that the LT26HVE is dumping bogus EDID, how crazy would it be
> to break off pins 6 and 7 on my DVI cable?
> According to http://www.interfacebus.com/Design_Connector_Digital_Visual_Interface_DVI_Bus.html
> pins 6 and 7 are  DDC Clock [SCL] and DDC Data [SDA], respectively. I
> believe EDID information is transmitted on the DDC.
> Does anybody know what else is transmitted on the DDC?

Why not just tell your video driver to ignore the EDID information?

> Would that stop the bogus EDID? Would my TV freak out? Would my
> computer catch fire?
> Has anyone else tried it? I'm happy to sacrifice a DVI cable, but not
> happy to sacrifice a computer or LCD TV.
> Just how crazy is this idea?

IMHO, crazy.


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