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Thread: OEM MFD2 (VW) and a PC. My next IVI (to replace my nexus 7 custom HU)

  1. #41
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    You can use that SD slot with Class 10 card with readyboost enabled (if it has the SD slot). That will help abit on the 1 gig ram. SNO
    Last edited by SNOtwistR; 12-23-2013 at 09:31 PM.

  2. #42
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    as suspected DTD Calculator doesn't work in Win7.
    I'm currently (trying to) modifying the driver to set the custom DTD directly.
    More and more I'm drawn to using linux... Modelines are a 30 second job on linux. If only centrafuse would support it..
    SNOtwistR, I'll upgrade to 2GB of RAM if needed. For now other than a very slow boot, it works good. I don't think the EEEPC SD Card reader is very fast...

    update: Yeap, made a custom driver and it worked although it's not very stable at the moment. (sometimes at restart it reverts to 800x600)
    The touch screen controller is supported natively by Win7 with builtin calibration tool, no driver needed. Isn't that's neat ?
    Last edited by dlbogdan; 12-24-2013 at 07:28 AM.

  3. #43
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    Quick and dirty first run of Centrafuse on unit.
    http://youtu.be/nxt9pFfLRZI

  4. #44
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    Wow that's great, it's coming together nicely.

  5. #45
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    Well, holidays are coming. Next thing to do for me is clean up my balcony lab.
    Happy Holidays!
    Last edited by dlbogdan; 12-24-2013 at 10:27 AM.

  6. #46
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    Yeah I know this is Christmas and all that but ...
    Thinking forward.
    (This post is specific to using laptops as a car PC)

    So, the laptop has a battery, its own UPS sort of speak. Uhuu.. errmm.. This brings a problem.
    The problem is that we may want the car pc to shutdown and start up with ignition. I've yet to see a laptop with a "Auto power on AC" option in BIOS. If you have such laptop, you are lucky, you should even play the lottery.

    The solution for normal not so lucky people like myself, will always be RTC CMOS Alarms, defined in ACPI standard.
    Let me explain.
    Even though there are no BIOS options on a laptop to wake it up on a given date/time the function still exists as defined in the standard.
    Accessing such function is, again, very easy and very scriptable in linux, in Windows 7, not so much.. but it's still there.

    -------------------------
    Let's test a scenario (you should do this to ensure it works on yours, if you are really unlucky it may not work at all)
    First step is to tell windows that it's ok to write to RTC CMOS when it's called for.
    This is hidden in Power Option (Ctrl Panel) "Whatever you may use" Plan Settings -> Advanced Power Settings -> Sleep -> Allow Wake Timers. Check both On Battery and Plugged In. (These options may be mirrored in registry for a setup script to auto enable them but I'm not a windows guru so I can't speak of such.)
    Now for our scenario test we will add a task with Task Scheduler.
    Click "Create a Basic Task" , enter name and description, next, click "One Time", set the Date/Time 4 or 5 minutes into the future, next, "Display a message", next set what to display ex: test test, next, check "Open the Properties Dialog" . Now when the properties Dialog comes on click the "Conditions" Tab and check the "wake the computer to run this task" . Click ok and then go on and put your computer to HIBERNATE (not sleep). (Unfortunately it will not work on Shutdown because windows will reset all the RTC alarms on shutdown. This works in linux perfectly fine though.) Also be sure to pull the mains plug!

    This is where it's going to become awkward for the laptop. The RTC will send the wake up signal but it will NOT wake up because there is no mains power (the battery is ignored if you put the PC to hibernate. not so in sleep mode). This should be standard behaviour. Now when the AC comes back, the laptop will be triggered to wake up immediately, exactly what we wanted.

    For this to become of any value, things will have to get scripted.
    So. When the ignition becomes off, (after a set time maybe) a script should set the task (similar to the example scenario above) and also to hibernate the pc.
    Stay tuned for more info (a script) on this one.
    Last edited by dlbogdan; 12-25-2013 at 01:22 AM.

  7. #47
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    here is a forum that lists some part numbers for the MFD2 video plug.

    http://www.clubtouareg.com/forums/f4...pin-12255.html

  8. #48
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    http://forums.vwvortex.com/showthread.php?2601216

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    Quote Originally Posted by javier View Post
    Finally it's confirmed. Connecting the "NORM" pin to a +12v with a 5k6 resistor in serial, you can switch the video input between NTSC and PAL and vice versa. I think actually all the multimedia harness connections have been discovered.<p>Best regards.<p>Javier.-

  9. #49
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    As I've written in my first post (now in #5), selecting PAL is nonsense because technically the LCD has an even lower resolution than NTSC so rendering at WPAL - 1024x576 is just wasting pixels and gpu power. But yeah, it works, I've tested that.
    Good find on the connector. I've improvised with a generic female multi pins plug but the OEM plug should be fitted of course.
    You can order the OEM connector and the pins directly in VW. The part number it's: 7M0 035 727 for the connector, and 000979010 for the plastic bag containing eight pins to fill the connector.
    Last edited by dlbogdan; 12-26-2013 at 04:18 PM.

  10. #50
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    Yeah, I just didnt know if PAL is better for your graphics card than NTSC. Still learning here..

    After i figured out how to get my hood open, the Latch came undone, and i had to pull the driver side wheel and fender liner. I was able to pull the MFD2 out today and get it powered up. I need a bigger power supply, its 13.8v @ 4amp from the 80's and my screen seems to be cutting out when ever the dvd player kicks on.

    after looking at the fuse @ 10amp i may need to upgrade, dlbogdan what size power supply are you using?
    Last edited by RHCP4LIFE; 12-26-2013 at 08:55 PM.

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