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Thread: Via Epia Mii 12000 Lvds

  1. #1
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    Via Epia Mii 12000 Lvds

    Does anyone have any experience with this board. I would like to drive a 7" Lilliput -and- a 14.1 LCD (LQ141X1LH03). I'd like to know if it is possible to send a different video signal to each interface. Hell, it would be nice to have the option of a third display using the svideo output. However, I only care about the VGA and LVDS at the moment, and I'm hoping that they could be configured independantly. Any feedback is appreciated.

    Oh... all of this is going in my 05 WRX.

  2. #2
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    Quote Originally Posted by extremis
    Does anyone have any experience with this board. I would like to drive a 7" Lilliput -and- a 14.1 LCD (LQ141X1LH03). I'd like to know if it is possible to send a different video signal to each interface. Hell, it would be nice to have the option of a third display using the svideo output. However, I only care about the VGA and LVDS at the moment, and I'm hoping that they could be configured independantly. Any feedback is appreciated.

    Oh... all of this is going in my 05 WRX.
    I don't know specifically about the Via board, but for most boards you should be able to send a different video signal to each display.. especially if you're using some form of Windows XP - it has great multi-monitor support.

    As for the LCD, are you SURE that's an LVDS LCD?

    It very well could be a TTL/CMOS style signalling, and not LVDS.

    If it's LVDS, how far is the LCD going to be from the motherboard?

    LVDS cabling can have some cable length limitations if it's not done right (ie, shielding, etc).

    Where are you getting the display cable from?

    I'm looking into making a cable.. I ordered a few sample connectors from Digikey.


    I'm glad to hear of another person with a WRX.. mine's a 2003 WRX Wagon.


    Where are you planning on putting the LCD panel(s) and the computer?

    I'm planning on putting an 8.4" 800x600 LVDS LCD in my center console where the radio is, and the computer up in the gauge pod housing where the clock is.

    The LCD is just the right width for the double-din radio opening, but it's about 2cm too tall, so I'm going to have to rebuild/resculpt the console and lose the cup holder..

    The 2005 WRX console is different from the 2003/2004 models, isn't it?

  3. #3
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    Quote Originally Posted by Giuliano
    As for the LCD, are you SURE that's an LVDS LCD?
    Nevermind, the LCD is LVDS.. Here's a spec sheet if you hadn't already found one:

    http://members.lycos.co.uk/eleewhmau..._16_Jul_98.pdf


    It's an 18-bit single channel LVDS LCD panel, so you'll need the FI-SE20M connector, shown here:
    http://www.jae.com/productpdf/btb/wtb/fi.pdf

    The motherboard-side connector is probably some form of a Hirose DF13-style connector..

  4. #4
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    I'd like to put the 14.1 either behind the dome light or replace it. The lilliput will be in the center console and should fit in the DIN slots. If I can figure out how to fabricate CF, then I'll likely replace the whole console.

    Is there really enough room behind the clock? Do you have any pix? One disadvantage would be that you cant show off the sexy 12000. I was thinking of tossing it in the trunk in a custom case with some subtle lighting.

    What kind of shielding do you recommend for a 10' LVDS cable?

    Does anyone know how well the display driver is supported in linux?

  5. #5
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    Quote Originally Posted by extremis
    Is there really enough room behind the clock? Do you have any pix? One disadvantage would be that you cant show off the sexy 12000. I was thinking of tossing it in the trunk in a custom case with some subtle lighting.

    What kind of shielding do you recommend for a 10' LVDS cable?
    The motherboard wouldn't go behind the clock, it would replace it!

    There is a Subaru gauge pod housing that fits into the space that the clock assembly is located, and provides a single-DIN sized space.

    The part number is H0010FE920OE, and can be had from Subaruparts.com for about $66:
    www.subaruparts.com/partsearch. php?partnumber=H0010FE920OE


    The width of the housing appears to be just wide enough to fit a 170x170mm Mini-ITX board, but I'll have to measure the depth when my part arrives. The opening is about 6"x2", which should be just about enough space for a motherboard and possibly a slim DVD drive.

    And you might still be able to show off the board - I was thinking either a clear plexiglass window in the front, or go the case mod route and cut an opening in the top for a window.


    See this Scoobymods.com thread for pictures - they were using it to install a digital gauge from a 98/01 Impreza in what looks to be a WRX:
    http://www.scoobymods.com/forums/showthread.php?t=1203

    As for the LVDS cable, I'm not sure - I believe there are cables that are shielded and meant for LVDS use, so I'll do my research and see if I can buy a small spool.

    LVDS should be able to go 10 feet, but keep in mind you'll also have to have a power cable for the inverter to supply the 12v from the motherboard - I am not sure if there would be power loss involved for a 10-foot run.

    The inverter would have to be close to the LCD, as it supplies high voltage.

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    LVDS Cable

    Quote Originally Posted by Giuliano
    As for the LVDS cable, I'm not sure - I believe there are cables that are shielded and meant for LVDS use, so I'll do my research and see if I can buy a small spool.
    Something like this is meant for LVDS data cables:

    http://www.nortechsys.com/intercon/news/newsltre.shtml
    http://www.nortechsys.com/intercon/bulkcable.shtml#LVDS
    http://www.nortechsys.com/intercon/89802_G1.pdf

    The cables come with the wires pre-twisted in pairs, so for a 20-pin connector, you would need 10 pairs.. the closest match they have is an 18-pair cable, or 36 wires.


    I'll see what else I can find...

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    LVDS Transmitter

    The LVDS transmitter board you would need for the Epia MII 12000 is the LVDS-01, which uses a Chrontel 7019A LVDS transmitter chip.

    The transmitter should be able to drive the signal for long distances with a properly shielded cable, but a few issues you may run into have to do with:

    • Voltage
    • Resistance
    • Timing issues caused by the longer cables.


    I think 3 feet should be fine, 6 feet may be OK, but I'm not sure about 9-10 feet.


    If you put your motherboard in the center console gauge housing, and run the LVDS cable from the center console over to the right side pillar, and up to the dome light, the length would be about 82 inches, or 6 feet.. so it may work.

  8. #8
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    I'm starting to think the most effective sollution would to get a dvi/vga to lvds display adapter that I could mount close to the LCD.

    However, I am only preparing for the possibility of mounting that lcd only because it is spare. I first need to solve the in dash TS solution first. Has 1024x768 dropped less than $400 yet?

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