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

Christopher David Petersen christopher.david.petersen at gmail.com
Thu Oct 11 18:07:16 UTC 2007


On 10/11/07, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> 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.
>
> Mike
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I haven't found the option to tell my *SiS* video driver to ignore
EDID information. I understand that nVidia drivers can use Option
"UseEDID" "FALSE".

Does anybody know the option for SiS video drivers?


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