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Benq 19" monitor not working every time when computer started

My 19" Benq montior is tempermental when I start my computer. Sometimes it works, other times it doesn't.

When it doesn't work, I get a few dos type prompts (ie boot log) on the screen. eg memory testing etc. The font of these dos words are not as well lit compared to when the monitor works, almost as if the monitor is not getting enough power. The monitor then fails to show anything else - it remains blank.

Obviously, when the monitor works I get a better lit dos prompt immediately after startup. I can then continue to see the dos window commands on the screen as the computer starts up (eg detecting IDE drives etc). In these situations I have no problems with the screen.

I have recently had a windows xp rebuild hoping the problem would go away. It did not help. Would appreciate any assistance you can provide?


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  • hoppermr May 26, 2008

    Thanks for the ideas.

    There are no problem with the monitor cable or the computer. I have tried connecting using both analogue cable and digital cable and the same thing happens. Any other ideas?


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Check your connections and make sure they are tight, and there are no bent pins. If everything seems ok, you might want to try plugging this monitor into a different computer or plug a different
monitor into yours to determine whether it's the monitor, the video card, or maybe the driver (doubtful on this as you state it seems to be bad somethimes on boot).

Posted on May 26, 2008

  • Robert Schmidt May 27, 2008

    Have you tried the monitor on another system? If not, I would suggest doing that and seeing if it acts the same. If it does work ok on a different system, it's probably a bad video card. If it does the same thing on a different system, it's probable an issue with the power supply in the monitor, and more than likely cheaper to replace the monitor than repair these days.


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