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Thread: RJ45 loopback problem... sooooo close

  1. #1
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    Unhappy RJ45 loopback problem... sooooo close

    My HP Mini is alllllmost working like I need it to. Last step (well, prior to wiring in Carnetix) is to get Wake from anything (LAN, Link, USB) working.

    After some playing with Wake on Link in Windows 7 I found I had to update the ethernet card's drivers. Now it wakes up no problem from hibernate/standby as long as the AC adaptor is plugged in.

    The problem is that this simply won't work in an auto environment. As soon as the ignition is turned off the power is cut to the laptop. At this point the only way to wake it up is to use the power button.

    Anyone managed to get Windows to keep the ethernet port powered in hibernation?

  2. #2
    Low Bitrate Gecko483's Avatar
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    Since you have a Carnetix why dont you use that for startup / shutdown?

    If you using a CNX-P2140, it has the relay output that you can hook up to your power switch. If you set up your computer to sleep in windows 7, the Carnetix power supply will activate the power switch when the ignition is turned on or off.

  3. #3
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    Quote Originally Posted by Gecko483 View Post
    Since you have a Carnetix why dont you use that for startup / shutdown?

    If you using a CNX-P2140, it has the relay output that you can hook up to your power switch. If you set up your computer to sleep in windows 7, the Carnetix power supply will activate the power switch when the ignition is turned on or off.
    Hey Gecko - I'm trying to exhaust all possibilities before hacking in to my laptop. I'm really hoping to find a solution that will make it easy to bring the laptop in and out of the car.

    A couple of people on the board have suggested that I wire in an adaptor of sorts and wire it directly to the power switch. I may go this route if need be but Wake on Link definitely seems like the cleanest way to do things.

    Speaking of Windows 7, I wasn't having alot of luck using the built-in sleep/hibernate functions. Windows just basically ignored the settings... but I installed ShutControl from the forum and it works great. As soon as the program senses that the power is removed it puts the computer in to hibernate mode. So if I can just get WOL to work it will be a beautiful thing....

  4. #4
    Low Bitrate Gecko483's Avatar
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    I understand the way you want the system to work. Ease of removal is a nice thing in case you want to bring the laptop out of the car, etc.

    Which Carnetix power supply do you have? The CNX-P2140 is also able to wake over USB, I had limited success with this. You just have to be carefull what you set the PSU to so your battery wont drain. I am not sure if this works in Windows 7 but I know it will under windows XP. I could not use this because I choose not to use Windows XP.

    I also thought there was a device that was able to connect to a network node of a computer and be able to wake it up externally. I thought i saw this device posted here someplace, I have tried to search for it but no results.

    One option you may want to entertain is the use of a docking station:

    By using the power switch on a docking station it allows easy removal. I did this back when I had a laptop in my car, this worked very well. I stopped using the laptop because of the USB hardware's incompatibility with the Lillyput USB touchscreens. It seems that Dell M1710 laptops have a built in USB hub to allow more USB connections, this hub does not play friendly with Lilliput USB touchscreens. If it wenrt for htis little hiccup I would have continued using the Dell laptop.

    In the end I purchased a different computer to work with the devices I wanted for my setup.

    Remember, if your persistant enough you will get things running the way YOU want them.

  5. #5
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    Any luck with this, Im working on my HP Mini 311 and I cant really find a way to get the power button on the mobo... looks like its through the ribbon cable!

  6. #6
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    Hey there - I ended up opening up my HP Mini and soldering directly to the power button... not the most elegant solution (I have little spade connectors sticking out of my ethernet port now) but it does work quite well.

    Not sure if the power button on the HP 311 is the same as mine... if you have a photo I'd be happy to tell you where I soldered...

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