Question about ViewSonic VG900b 19" LCD Monitor

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Monitor problem - Dark colors, slow screen refresh

I have a Viewsonic VG900b monitor that recently just started to show some very strange problems. First the colors have all gone dark, as if someone had turned down the Brightness all the way. I can still see everything, it's just very dark.

More annoying though is that the screen refresh is painfully slow on all operations. Moving the mouse is a chore, with the screen being refreshed about one time per two seconds (fading from one refresh to the next). Even pressing the 1 and 2 keys on the monitor have a very slow (and fading) refresh, and "Auto Adjust Image" and "Screen Resize" have no effect. Also, I have switched this monitor to other Windows AND Macintosh computers with the same result, so I'm pretty sure it's not a software driver problem.

Can this monitor be saved, or is it toast?

Thanks in advance.

Posted by on

  • Anonymous Apr 14, 2009

    how long does an lcd monitor last?

  • mapwu Apr 15, 2009

    I also have seen this problem with my monitor. The monitor I have is a flat panel LCD display that is 2.5 years old. I was working on the computer when the "ghost" took over the machine. By that I mean I saw the event that initiated the change. A dark 'cloud' traveled across the screen, from the upper right to lower left, and then the whole screen dimmed and began having more and more refresh rate problems. The mouse cursor would show a trail, and the mouse was often not visible. To find it, I would move it quickly back and forth and the 'column' of pixels that contained the mouse would show brightness at the top of the screen. I went out and bought a new 23" monitor and am happy with it.



    But I want to fix the other one. Could it be a power supply problem?

    How long should these monitors last?

    Mine was a HP f2105.

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It sounds to me like the picture tube in the monitor is going out. I began to wonder if it was your video card until you mentioned that you used it with various computers. This tells me it's the monitor itself. Unfortunetly, I think your monitor may be due for retirement.

Posted on Mar 31, 2009

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We have a Viewsonic VG900b monitor that recently just started to show some very strange problems. First the colors have all gone dark, as if someone had turned down the Brightness all the way. I can still...


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Lastly, Unplug from the monitor from the system and allow to cool for a good 3 hours or better still, disengage it from duty for 1 day and start using it the next day.

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