Reading EDID blocks from LVDS LCD to configure LVDS output?

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John Byers

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Apr 6, 2014, 2:46:58 PM4/6/14
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I found information on how to manually configure an LVDS display in the Wiki.  However, at least in the case of the LVDS LCDs I can easily scrounge up out of otherwise dead HP DV6000/DV9000 laptops, the LG panels support E-EDID, and the factory cables have wires attached for it.  The question is, where would I hook them up to on an AllWinner chip and then how would I use them to configure the LVDS display options?  The first one I stripped I can't find a datasheet freely available for, so the only method I have to get the proper timings for it is to pull the E-EDID block and decode it.  I'm also going to go out on a limb and guess that other LVDS LCDs support E-EDID as well.  If it is possible to use EDID to configure them, it would make using an LVDS LCD much simpler :)

Thanks!

Rajesh Mallah

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Apr 6, 2014, 10:14:41 PM4/6/14
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Dear John ,
what board are you using?
The LVDS output needs to be tapped from the boards, its not possible to access the
lvds pins of AW unless the boards offer them in a convenient connector. some relevant

regds
mallah.

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