[mythtv-users] Idea for possible workaround to stop bogus EDID data
Christopher David Petersen
christopher.david.petersen at gmail.com
Thu Oct 11 21:08:39 UTC 2007
On 10/11/07, William Munson <william_munson at bellsouth.net> wrote:
> Daniel Arfsten 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?
> > 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?
> > RE below:
> > How about just using an option within your xorg.conf which ignores the EDID
> > data from the monitor? I forget what it's called but I know I have read
> > about it.
> > Daniel
> I would think that it would be easier to just put Option IgnoreEDID in
> your xorg.conf. There are many howto's on the subject. Then you can
> specifiy the screen size and resolutions. Works for me.
> mythtv-users mailing list
> mythtv-users at mythtv.org
I've tried both
Option "UseEDID" "false"
Option "IgnoreEDID" "true"
with my *SiS* driver to no effect.
I think "IgnoreEDID" is a deprecated option for nVidia drivers, with
"UseEDID" being it's replacement.
Have either been implemented for any other drivers other than nVidia?
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