Question about Toshiba Satellite U405-S2856 Laptop

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U405-S2856 loses contact with external monitor

Few times a day, my U405-S2856 make a sound , then the external video screen shows "no signal" for a few seconds, After that the the picture returns with a message on the lower right of the screen that I'm not working in optimal resolution, it happens a few times in a row and than everything gets back to normal.



I have tried changing the resolution to the recommended 'optimal resolution' but it still happens.



Any advice is highly appreciated.



Thanks

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  • nirbd Jul 14, 2009

    the sound it from the speakers. the problem isn't the sound. but the fact that the monitor loses signal for a few seconds.

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It could be over heated maybe turn it off for a while then turn it back on to see if it still makeing a nosie

Posted on Jul 14, 2009

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