Question about Samsung SyncMaster 245BW Monitor

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My Samsung SyncMaster 245bw suddenly will not sync with my Dell XPS M1210 laptop. I don't think the monitor is broken because I still get the "check signal cable" box and the "digital" and "analog" messages. It just suddenly started not connecting. I've turned it and the computer off and on in any number of sequences. Help! Laptop screen too small to do my work!

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  • bobbiemel Oct 08, 2009

    Okay, I tested out the cable by attaching another laptop to the monitor. This didn't work. Then I took my computer and attached it with the cable to my partner's monitor, which worked. I used her cable on my computer and her monitor. This worked. I used her cable on my computer and my monitor. This didn't work. I hit F8 a couple of times in various modes. This didn't work.

    Sometimes what happens is both my laptop screen and the monitor screen go dark when they are connected. Like the computer knows the monitor is attached but the monitor is not displaying the image. A couple of times when I first turned the computer on, the screen image comes up on both the computer and the monitor but, after a few minutes, it goes dark again.

    More ideas?

  • bobbiemel Oct 08, 2009

    I'm not sure how this works, but I'm hoping you can see the previous thread. I don't think the monitor is faulty because it seems to be working correctly except for not communicating with the computer. I would just like another opinion on what may be wrong. I'm sure the monitor is not under warranty anymore. Please let me know if you need more information.


  • bobbiemel Oct 08, 2009

    Aha! That worked. I think what I didn't understand about Nina's suggestion was that I needed to press the Fn button WITH the F8 button. Duh. Thanks for everyone's help!



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On the laptop keyboard there should be a picture of a monitor on one of the function keys like F8 when you find it press the fn button and and monitor key to go through the external display options.

usually the options are press fn and the function key once for external display only, 2 times for both laptop screen and external and 3 times for back to just laptop. some have more like auto extended desktop but just hit the fn key with the function key with the monitor picture on it and wait about 15 seconds then press again till you get it on the type you want

Posted on Oct 08, 2009

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Hello, Bobbie.

If your laptop boots OK without the Syncmaster, press the CRT/LCD key once or twice (or Fn and F8) to see if any display.

Usually the message that you are getting indicates that the laptop was not powered on, since the monitor doesn't see the signal.

It's possible that your monitor's VGA cable is bad, so I would suggest, if still a problem, to connect the Syncmaster to another laptop or desktop. Wiggle the VGA cable to see if any difference.

Hope this helps.

Posted on Oct 08, 2009

  • NinaE Oct 08, 2009

    Hi, Again.

    With all the troubleshooting you did as you described, you determined
    that your monitor
    is faulty. With every setup, your VGA cable and computer worked fine,
    since the monitor didn't work on another computer. If the monitor is
    under warranty, contact Samsung for
    repair or replacement.

    If not, your monitor would need to be serviced.

    Samsung had some troubleshooting tips, but they would have determined if you saw a "Check Signal Cable", that the cable or computer is faulty. You proved otherwise.

    Hope this helps.



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