2007WFP gradient banding

[yuzna]

Was unaware about this problem and got the 2007fp with my new desktop. So far I have noticed a little banding, but nothing really serious. Didn't pay anything for the LCD so I don't feel to bad about it. Also seemed to have lucked out since I got the S-IPS instead of the S-PVA. If you are uncertain about which screen you have just follow these easy instructions.

To enter service menu:

Turn off:
Hold down both "menu" and "+".
Turn on.
Continue Hold down both "menu" and "+", until it completes power up.
Wait for the input graphic to disappear.
Hit the "-" key

if at the top screen is says LPL you have the LG one, otherwise it will say Sam for samsung or PVA or something like that

 

[Heartbreaker]

Dang I wanted the S-IPS panel. What is the date on the back and where was it manfuactured. Mexico, March 06 or similar???

 

[yuzna]

Says Mexico, April 2006. Thought it was wierd that it was S-IPS, since I got the computer this week. They must have been trying to get rid of their S-IPS screens

 

[CrazyChuckster]

Is this banding issue just related to the Wide Screen version of the 2007 or is it happening on the regular 2007FP as well?

 

[dnd728]

both

 

[CrazyChuckster]

Ok so how can you tell if you have an S-IPS or PVA panel?

 

[xtknight]

Originally posted by: CrazyChuckster
Ok so how can you tell if you have an S-IPS or PVA panel?

Service menu, or, the screen changes tint according to this chart:

http://www.lgphilips-lcd.com/homeContain/jsp/eng/tech/tech301_sips_j_e.jsp

The black on IPS screens takes a slight violet hue when viewed at an angle, while VAs take a lighter/orange faded out look.

 

[CrazyChuckster]

Ok mine says

SAM UXGA LTM201U1

So I take it that it is a PVA monitor correct?

Either way I read through this thread entirely and I did many of the tests and the banding I get is minimal.

I performed the same tests on my older 2001FP and I dont get any banding there.

Oh well I will live with it as this monitor only cost me a hundred and a haf when it is all said and done.

 

[xtknight]

Originally posted by: CrazyChuckster
Ok mine says

SAM UXGA LTM201U1

So I take it that it is a PVA monitor correct?

Yep, sounds like it to me.

 

[Starbuck1975]

I contacted Dell to get clarification on the type of panel they are using on the 2007WFP...the tech I spoke with pleaded ignorance, and was unable to provide me with the information immediately...I was told they would look into it, and that they would send me an email once they had the information.

So far, nothing back from them.

 

[Heartbreaker]

Boxed,RMA'd and ready to return.
Dell 2007fp
Made in Mexico, March 2006, Rev A00.
Panel info: B01C18 SAM UXGA LTM201U1 (Samsung S-PVA)

Issues:

Text Blur:
There is a pixel wide mild blur that was not there on the 2405 which was pixel perfect. Not only that but attempts to photograph the screen are always showing rainbow moire. Which again was not there on the 2405, which points to an instability in the display as well. More signs of poor support electronics. I didn't have both monitors at the same time so I didn't shoot the same thing. But this is representative of the differences in clarity and pixel bleed.
http://i.pbase.com/o4/04/606404/1/59944402.textComp.jpg

Banding:
Yeah it is there. Not as bad as some other examples I have seen, but there is definitely color banding. Shot in RAW and never processed to JPG:
http://i.pbase.com/o4/04/606404/1/59586239.2007fp.png


Terrible Viewing angles:
I planned to do a head on(before) shot and an off angle shot (after) to show what this PVA panel does. But my before shot was probably off center by a bit and off angle a bit. The result. Maybe 5 degrees off and still tone shifting like crazy. This should be a consistent tone across the screen. It is not even consistenet when facing the screen head on. Seems to be standard PVA/MVA behavior, but I was expecting to get a S-IPS. Dang it Dell. Panels are not identical.
http://i.pbase.com/o4/04/606404/1/59768645.PVA_Shadow.jpg

 

[yuzna]

You gotta love that Dell Support, claims to be award winning, makes you wonder where though The best way of dealing with them is to keep on calling until you get someone who is either higher up or know what he/she is talking about. Usually takes a few tries. Doesn't help either that Dell is known to not acknowledge problems with their stuff.

 

[dnd728]

Originally posted by: guidryp
...
Text Blur:
There is a pixel wide mild blur...

Is this (ghosting?) via DVI???

 

[Ryan Norton]

How on earth did you get those pics of the text blur? I perceive the same problem on my S-IPS 2007WFP but I haven't been able to capture any proof. I just know that my 2001FP didn't have it.

 

[trabpukcip]

Alright here is a post from an recent owner of a new 2407wfp.

Panel: V1B08 SAM WUXGA LTM240M2 which according to samsung is a s-pva panel

Noticeable viewing angle fade at about 35 degrees horizontal from centre vertical is not that noticeable there is no room around me to look at it side on all the time

Banding is huge on greyscale not so noticeable on colours but definately still present.

I mainly play games on it as it is a home monitor with the odd movie, it wouldn't do for graphics.

Oblivion looks fine so does HL2 also looked at winamp milkdrop visualisations no probs there.

Text looks pretty sharp to me, although cleartype is currently on.

I may be willing to live with it, are 2407wfp available with s-ips panels does anyone know?

I will try vga now as I haven't tried connecting it yet.

I have a crappy kodak camera, but here are some shots anyway:

Shots of Service Menu

http://i43.photobucket.com/albums/e390/kwyjibo123/100_1990.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1991.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1992.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1993.jpg

Shots of Gradients in Paint Shop Pro 5, the sunburst (photoshop radial equivilent) i know is not very accurate as it is circular, the linear greyscales are 256 x 256 px 0 to 255 pixel perfect no dither

http://i43.photobucket.com/albums/e390/kwyjibo123/100_1994.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1995.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1996.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1997.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1998.jpg
http://i43.photobucket.com/albums/e390/kwyjibo123/100_1999.jpg

Shot of gradlin-v0.2-fs.exe

http://i43.photobucket.com/albums/e390/kwyjibo123/100_2000.jpg

Edit: Sorry I just realised god damn photobucket resizes images even if they are under the 1mb limit I will repost tomorrow with the images uploaded elsewhere. Oddly though the gradlin shot is not resized

BTW the yellowpages.com.au background looks smooth

 

[Heartbreaker]

Originally posted by: Ryan Norton
How on earth did you get those pics of the text blur? I perceive the same problem on my S-IPS 2007WFP but I haven't been able to capture any proof. I just know that my 2001FP didn't have it.

I took a lot of shots and looked for one that looked right. The thing that struck me was how almost all the 2007fp shots were full of rainbow moire which to me is a sign a basic ongoing shimmer/instability. Which may be responsible for the blur/ghost. By contrast the 2405 was rock stable in all shots. Each pixel was clearly on or off. With no bleed/shimmer/blur.

The 2007 display electronics are definitely sub-par. IMO.

 

[trabpukcip]

When I connect my 2407wfp to analog the banding is definitely a lot less with it now only being slightly banded although text (of course is a bit harder to read), but it still sucks.

I might try playing around with options in the service menu that can be changed.

 

[Ryan Norton]

I have a 2nd 2007WFP already, shipped as a replacement for the first one. Same degree of banding on both, of course. Mention was made over at the Dell forums thread on this issue by "Chris M," a moderator, that said something about all models having this problem (post was deleted though) so I figured I should contact Dell and see whether a) they have an answer now or b) I should just return it/get another one. here's what I got:

2:01:27 PM You do you see my case number? this is an ongoing issue I have with the 2007WFP monitor
2:02:12 PM Abhishek_01100282 I sincerely apologize ,due to the problem that system tools are down for maintenance. This is across the dell sites. So, I won't be able to pull up any information related to your account and also your previous interactions with Dell. Your patience and cooperation is most appreciated. We will perform all the required steps to diagnose the problem.
2:02:29 PM You okay, would you like me to explain the problem?
2:02:50 PM You I also have chat logs of previous conversations about the problem
2:05:11 PM Abhishek_01100282 Ryan , LCD monitors are the part of the desk top systems.
2:05:29 PM You I purchased mine separately, it did not come with a dell computer system
2:06:17 PM Abhishek_01100282 That is not an issue , rater it is always purchased separately as per the requirement.
2:06:29 PM You okay
2:07:04 PM You the monitor I received was defective, I did troubleshooting with hardware support chat and it could not be solved. dell sent me a replacement monitor which has the same problem.
2:07:44 PM You I would like information on dell's plans to fix this issue in this series of LCD monitors since it has been detected by many people and discussed heavily at dell's community support forms
2:07:46 PM You forums
2:08:54 PM Abhishek_01100282 Ryan , In that case please perform a monitor self test , and contact us later , so that will replace the monitor and this time you will not face any issue further.
2:08:54 PM You if dell cannot convince me that the problem will be fixed then I will have to return the monitor and get my money back
2:09:12 PM You okay, why do I need to contac tyou lateR? because your tracking system is down?
2:10:27 PM Abhishek_01100282 Yes , As the tools are down , so that will replace the Monitor . I had made the case , but it can not uploaded due to technology ,

 

[against]

I washed my hands of this LCD and got my money back. I suggest everyone does the same. It is obvious there is a massive chasm between Dell's customers and the actual people who are making the decisions.

The previous post is a huge example of that.

 

[against]

Hey all, i'd like you point you folks to this thread before it is deleted.

http://forums.us.dell.com/supportforums...?board.id=dim_monitor&message.id=55658

Someone deleted the forum moderator's post (ChrisM) admitting that the '07 LCDs indeed do have a problem.

 

[Heartbreaker]

Chris will probably get reprimanded and re-assigned for admitting there was a batch problem. When you call Dell I think it is quite pointless to try and convey any sense of the issue to them. They are clueless. I stuck a note in the box detailing the problem, so maybe if a tech checks it, he will get the idea. Then again may one of you will get my note with you next return.

 

[oddity]

Yeah. I RMA'd my 2007WFP today- I picked up a ViewSonic VX2025wm and I can only see very minor banding at the left of the screen with gradlin 03. It's FAR better. But, of course, as my luck would have it it's got a dead pixel. I'll be returning it ASAP to get a different one (yes I'm picky about pixels. My eyes were drawn to it right away!)

 

[peebi]

I buy 1907fp but got 3 dead pixel. And Dell return me new 1907fp with a lot of dead pixel. I complain it . Then Dell return me new 2007fp. I happy it no dead .
After I read every post in many Forum about problem banding.
And I check my 2007fp it is LPL UXGA LTM201U05 mfg feb in china ( it S-IPS )


I test with black picture I can see blacklight bleed (upper right) Is it nomal or not.? ( I not see it when Plug on and test immediately. After 20 min. it occur)
Is (upper right) a point of power supply or not it very hot than other. Is it true I think all of 2007fp must have problem.

What can I do? return it or keep it and If I return it Dell will return 20" to me or not?

What different between 2007 fp S-IPS mfg Feb and April

 

[SunSamurai]

Originally posted by: xtknight
The ViewSonic VX2025WM looks promising for $400. Might be better than the Dell 2007WFP. If you're willing to give any other LCD a try I think that's the one you should go for (if you can't afford the 20WMGX2).

That monitor has color issues. If its 8 bit its very poor. i would guess it was 6bit.

 

[SunSamurai]

Originally posted by: xtknight

Originally posted by: B4RK0D3
I think I'm going to send mine back as well. Any suggestions on something comparable in price, but not in exchange for poor quality?

The VX2025WM, as stated above, looks great.

Stop telling people what 'looks great' when it only looks great on paper. Unless you actually LOOKED at it in DVI? But then youd get evn less credit becuase the color rention is POOR.

All you people have to do is look at a simple colorwheel and a few color gradiant images, it is not that hard. Color is also muted on the monitor.