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November 2nd, 2005 20:00

C610 Screen shows moire pattern, pink and aqua for grey and white

My Latitude C610, Mobility Radeon, 14.1 LCD XGA screen, Windows 2000 Pro, 1.0 GHz, 386 Mb RAM, came up after going dark overnight with the following problems:
Moire pattern
Aqua instead of white anywhere on screen including software
Pink tones in all of the greys

I have uninstalled and reloaded the Mobility Radeon driver, with no change. I have shut off the computer completely for eight hours or so, with no change. Also, I have attached an external monitor (a CRT picked out of the trash!) that has no trouble with colors or moire pattern.

I had some hopes that there would be a correct "Display Device" driver that would solve the problem, but apparently the ATI Mobility Radeon driver is it.

I played around with a few of the many color schemes that the specific ATI "advanced" software provides, but there was no change.

One idea is to purchase and use DisplayMate ($69), to (re)tune the LCD screen. Does anyone know if this will make any difference?

Or any other ideas? Hardware?

Thanks in advance.

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87.5K Posts

November 4th, 2005 00:00

The backlight bulb is failing and needs to be replaced. Contact an LCD repair specialist; the replacement should cost about $100.

6 Posts

November 6th, 2005 00:00

Thanks for the information about the backlight bulb.

I will keep it in mind, but at the moment I don't need it. Today it's been a week since the Latitude C610 started its aqua and pink phase. This morning I dimmed the screen as much as possible, to run only on the external monitor. This afternoon, for the first time, I detached the C610from the external monitor, and from the surge protector, without shutting anything down. That is, it was running on batteries, not electricity. I put it into my backpack, which is computer enabled (special lightly padded section, and put the backpack on my wheelchair, and brought it downstairs to my parttime job. To get it out of the apartment, I ran one wheel over the leg of a standing fan, which is a bit of a bump.

I then set it up at the front desk of my apartment building, but dreaded the "green screen" (actually aqua). Finally I set to work; I was stunned to find that the screen was fine.

I want to think that it was switching to battery power that made the difference; probably, it was one or another bump involved in packing up and transporting the C610. Perhaps with your information, and this history, I can get the cost down to a repair person screwing in the bulb more tightly, for $50 - $75 or so.
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