LCD HELP

gerghk

Junior Member
Jun 3, 2005
2
0
0
I just bought a LCD off a private seller on my university's online marketplace. It's a NEC MultiSync LCD 1550V and was in perfect working condition when i bought it.

The monitor's been fine for the entire first week of operation, but weird things have been happening since.

I seriously don't recall anything happening to it, it just started having problems one day.

Here's what happens,

on boot up it's a lot better, but u can already see green dots here and there on the screen, the longer the screen stays on, the wider the dots become, until i see broken horizontal green lines spanning across the whole screen.

They don't always occur on the same places either, they seem to appear near spots of contrasting color in particular.

Chaning the contrast or rgb options causes the lines to shift around the screen, again following spots of contrasting color.

Shutting off the monitor for a while reduces the length of the lines for a bit until they widen again after a while.

I've tried many things, from using a different vga cable to plugging in to a different socket, i've also tested the monitor with 2 other computers, one being a mac, and they all have the same problem.

Only thing i suspect is interference from the power source, cuz the interference seems rather strong in this apartment, as my speakers recieve the radio just plugged into the power socket.

sadly this monitor was 2nd hand, so i really can't turn to any warranties or anything for diagnostics or repairs... i called NEC and the tech support had no idea.

i do hope there are some display experts out there who may know what the problem is...

thanks a million,
greg
 

birdpup

Banned
May 7, 2005
746
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Try updating your graphics card driver(s) and LCD driver(s) with the latest version from the respective manufacturer. Electromagnetic interference is possible but the effects seem too strong for that.
 

LiLithTecH

Diamond Member
Jul 28, 2002
3,105
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What Resolution and Refresh rate do you have it set to?
(optimal is 1024 x 768@75Hz)

Is it set to 'AUTO ADJUST'?
 

gerghk

Junior Member
Jun 3, 2005
2
0
0
yea it's already set to optimal, 1024x768 @ 60 Hz

i've tried 72 or 75 too, no difference, also tried auto adjust
 

fishmonger12

Senior member
Sep 14, 2004
759
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0
sounds a lot like a graphics card issue. have you tried plugging your old monitor back in and seeing if it still has these problems?
 

boran

Golden Member
Jun 17, 2001
1,526
0
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Originally posted by: fishmonger12
sounds a lot like a graphics card issue. have you tried plugging your old monitor back in and seeing if it still has these problems?

he has already ruled that out, if it happens on different computers it's definetly the screen. does the screen have a DVI ? if so try to see if that helps.