NEC 2090UXi weird solid color flickering problem

[Puppy2007]

After few weeks I noticed distubring issue with this monitor. I'd like to know whether it is design problem or just my unit electronics is defective ?

The monitor is connected via DVI-D using native resolution 1600x1200 @60Hz, 32bit color. The problem can be demonstrated by displaying blue color (default Windows XP desktop backgound) or dark-grey (default Windows "empty" workspace color) on the whole screen. I notice some "flickering" or "wave motion" in the solid color located in the bottom half of the monitor similar to slow refresh rate on CRT monitors. It can not be a backlight issue because it is not visible on white color at all. Setting CONTRAST to the default value 50% (which is too high for normal usage) seems to help a bit but I prefer values around 37% and BRIGHTNESS 19.5% where it is very visible. Especially if you look slightly under the bottom side of the monitor. Since it is A-TW-IPS panel I don't think it can be a dithering issue.

I bet most of people wouldn't notice it at first glance. Unfortunately I'm sensitive to such effects, I couldn't stand any CRT monitor with refresh rate under 90 Hz.

Can anybody confirm this problem ? Thanks in advance.

 

[xtknight]

I'd ask NEC. You probably have a defective unit and you seem to have eliminated all other possible reasons.

 

[bluefoam]

From what I read, I think I might be experiencing the same thing. I have an NEC 1970gx multisync and I began to notice what seemed to be slight flickering when my background was set to the blue xp image. If no processes are running, it looks fine. When I open task manager, or anything really, and move the window around the screen to increase the cpu usage, the colors seem to flash in certain areas from one color shade higher to lower and vice versa. I am running a core 2 e6600, Asus p5ne-sli, 2gb 800mhz corsair twinx, eVGA 7950 GTKO, on a 550 watt thermaltake ps, 300gb seagate sata hd, plextor 8x dvd/rw dl sata. My box is thermally advantaged and I run 1-120mm in the back, 1-90mm on the side, 2-80mm on the front and a Thermaltake silent 775 on the cpu. Basically theres really good airflow. I just reinstalled xp last night thinking I may have had bad drivers, and still the same thing. All updated drivers and the card is in right and powered straight from the ps. Its strange though because I think it may be only after I log in that I notice it. From what I can tell, the sign in screen doesn't seem to do the same thing. Does what I just describe sound like what you are experiencing and/or does this evn make sense??? I wouldnt think its a lack of power since I am not running SLI. I had this problem once before on another machine with a gigabyte board with the integrated intel graphics chip (g965 I think) and I noticed went away after I disabled and dumped in a radeon x1300 pro.

 

[Puppy2007]

Originally posted by: bluefoam
From what I read, I think I might be experiencing the same thing. I have an NEC 1970gx multisync and I began to notice what seemed to be slight flickering when my background was set to the blue xp image.

I assume your monitor is connected via DVI-D so there is no chance for interferences on analog cable. Could you try some test from this page http://www.techmind.org/lcd/ ? Especially the Cross-talk ones.

 

[bluefoam]

[/quote]
I assume your monitor is connected via DVI-D so there is no chance for interferences on analog cable.
[/quote]

Yes and no. DVI to analog converter just past the card. Analog into the monitor. As far as the tests, I will try tonight and let you know what I find. I was, however, able to remedy the problem somewhat. Pardon the noobness but it was a simple fix on the monitor display. There is a "DV mode" setting that goes from 1 - 2 - 3 or off. I noticed the flickering on setting 3 which I believe is 7500k. Unfortunately, this is also the best looking setting as far as contrast, brightness and overall color and settings 1 and 2 are just about unbareable. "Off" looks good, but I know I will be sacrificing a lot of high def junk at some point. Theres a guy on ebay selling dvi cables made in the usa for about 30 bucks, so Im going to also try this to see if the issue might be interference. Thats the main reason for the current setup (dvi to vga) because the cables are so pricey and even just a dvi converter still runs about 10-20 bucks... and whats the point of that if still running through analog cables? That and the dvi inputs are different from the monitor to the card. Almost the same minus about 4 pins.

 

[BassBomb]

are you coming from a CRT?

Turn off your DV modes or Advanced DM if you have them

 

[bluefoam]

Im on LCD... and I believe puppy is too from the description