2407 Font/Mouse Trail Ghosting, Bad Dithering

Question

Hi All.   I just started using my new 2407WFP Rev A03, and I'm wondering if I have a bad LCD or if I'm simply expecting performance that won't happen.   First, all fonts have bad crosstalk-that is red and blue fringing around the edges of screen fonts-more noticeable white on black.  Using CheckeMon (a monitor testing utility), this crosstalk is quite evident. It doesn't matter whether they're smoothed or not, or whether ClearType is on or not.  When scrolling up or down, a pink ghost also follows the scrolled text.   Second, and likely related, my mouse pointer has severe pink ghosting while in motion.  It's worse with pointer shadows on, and I don't use pointer trails.   Last, I'm experiencing very apparent dithering (or is it a gradient problem?).  This is especially noticeable in games, where shadows and lights have a faint but clear rainbow-like halo instead of smooth color changes.  CheckeMon shows clean, smooth gradients on its gradient test.   OK so far, following the advice I've read here, I can verify the following: These problems occur both under VGA and DVI-D. The Self Test (monitor only) does have the floating box when unconnected as it should. I've cleanly uninstalled and reinstalled my video drivers (mainly to ensure all settings were absolutely at default). I've used the 2407 OSD Menu to reset all settings to factory default (my eyes are burning from the brightness!)   Edit:  As I read further, I've also tried switching color to MAC mode, but that's just changes the ghosting color from pink to an off-white kind of a thing. /Edit   I'm using a GeForce 8800GTX with driver version 97.02 (although this problem also occurs under 97.44) on Windows XP running under an Athlon X2 4800+.  I'm using the native resolution, at 60Hz, and at 32-bit.   So what's the deal?  Am I expecting too much?  Will a replacement help?  Or should I just try for a return and refund?   Thanks all.   LC   Message Edited by LittleCupcakes on 12-28-200604:37 PM

jw0ollard7 · Answer

For me, depending on the brightness the ghosting is either bright red or bright green.

Also, what color the text is on makes a big difference. Black text on white makes a green ghost, and black text on grey makes a red ghost.

The ghosting is REALLY terrible. I've gotten used to ignoring it though. I'm not sure if you can though. The only time it's ever a huge problem is on websites that use a background that's very finely textured, like an alternating light and dark 1 pixel tall line pattern (sorry, hard to explain). But anyway, on those sites, the background actually FLASHES bright green when I scroll. It's unbearable.

Anyway, play with your brightness settings. The ghosting isn't as notable if it's close to white, which on my monitor I found was the least green/red at around 45-47 brightness.

I'd like to find an example of a website to show you the "flashing effect" but I can't seem to find one right now.

bubbaganoush · Answer

I have this problem on my A03 as well. The ghosting is some what reduced if I reduce the brightness.

bubbaganoush · Answer

Here's an example of the 1 pixel striped background. http://milanmehta.net/blog/?p=73

jw0ollard7 · Answer

Yes! That's the type. It's positively disgusting to look at. It could honestly give someone a seizure if he or she had epilepsy. Does it flash this much on other 07 monitors?

I'm so disappointed in this monitor.

LittleCupcakes · Answer

I don't have that particular issue (the 1 pixel background thing) thank goodness.   Dropping the brightness does help a bit with the ghosting, but not at all with the color gradient/dithering issues.   LC

jw0ollard7 · Answer

Are you using the scroll wheel to scroll? It's not that bad when I use the scroll wheel (since it jumps a certain amount of lines), but try actually dragging the scrollbar or holding the down arrow on your keyboard.

I'll actually be kind of upset it you DON'T have the problem, haha, since I thought that it was a problem with every 07 monitor.

I'm thinking more and more about getting mine exchanged for an A03 and hoping for the best.

bubbaganoush · Answer

Try setting the Color Adjustment to Custom Color and reducing all the color levels. The ghosting and flickering effect goes away completely with a setting of about 80 on all the color levels. The picture quality suffers though...

BookerHD · Answer

Hi there,   The greenish/pinkish trail/shimmering problem is the only thing that kept me from buying the 2407 as of yet. I was wondering if your panel is a HN208 or HN213 as pointed out by http://www.hardforum.com/showthread.php?p=1030401050 this thread of mine.   From what I've gathered so far, the greenish/pinkish trail is due to a bad overdrive being used. So far I'm not too sure if the HN213 panel has solved this problem so I'm looking for more user inputs.   You're definitely not the only one experiencing this problem.   http://forums.us.dell.com/supportforums/board/message?board.id=dim_monitor&message.id=66155 (posted by me a few months back)   http://forums.us.dell.com/supportforums/board/message?board.id=dim_monitor&message.id=64368   Thanks for reading!

LittleCupcakes · Answer

Thanks for all the advice.   What I'm really saying is this:   I'm completely dissatisfied, and one way or another I'm not keeping this particular monitor.   Will a replacement be different? Or should I just go for a straight return and refund?   Thanks.   LC

bubbaganoush · Answer

I have read on a few forums that people still have problems with their replacement monitors. I guess it's hard to tell because people who have no problems won't have to seek out help or post about it so we'll never know.

There's also a chance you might get an A02 revision as the replacement.

Message Edited by bubbaganoush on 12-29-200601:47 PM

DELL-Chris M · Answer

All, I have two of the 2407WFP (V1B20 HN208) and do not see any Mouse Trail Ghosting. I use VGA on one and DVI-D on the other. Both in Desktop Mode, default settings.

LittleCupcakes · Answer

I also have V1B20/HN208.   I guess I'll try a replacement, then, ChrisM, since it appears I may have a defective one.  Thanks for the input.   Just for clarity's sake, I'm not using the Windows 'pointer trails'.  It's the mouse cursor itself that ghosts as I move it across the screen.

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