I do not work for Dell, but I am curious about your issue.  When you say your U2413 is "revision 1", does that mean "Rev A01"?  Are the shadows green in color, or more like a light blue?  Do the shadows also appear while watching videos or playing video games?  Can you post a screenshot of what this looks like while moving a window or scrolling text?

This sounds like more artifacts from Dell's overly aggressive use of overdrive for response time compensation in the U2413.

rGiskard,

DragonPurr might be correct in that the culprit is the overdrive. But it could also be the Smart Video Enhance or the Dell Displays Manager. Try this and post the results -

* Open the monitor OSD (On Screen Display)
* Go to Display Settings
* Go to Smart Video Enhance
* Change this to Off
* Exit the monitor OSD
* Open the DDM (Dell Display Manager)
* Click the tab Auto Mode
* For all listings, change them to Standard

DragonPurr,

search this forum and you will see that you are not the only one with this issue, this is a problem on your monitor and also on more expensive u2713h and u3014. they don't accept this issue as a problem and they will not implement a solution for it.

If you have a option  turn this monitor back to the store where you bought it.

Chris M

I do not think that turning off the "Smart Video Enhance" fixes the shadow outline around text, images, and window frames.  I have a Rev.A02 U2413 and the severe inverse ghosting that plagued A00 has indeed been fixed.  On my display, the shadows are light blue cyan in color and only appear when either (1) scrolling text such as Web pages, (2) panning across images in graphic applications, or (3) moving window frames, similar to the green shadows that rGiskard describes, and the shadows are most noticeable against a white or light background.  For regular text font sizes, the shadows are about 1mm to 2mm in width.  For larger text fonts (like headlines in Web pages), or when panning images or moving windows, the shadows can be 3mm to 4mm in width, tapering off and fading by the time that the shadows extend out 4mm beyond the text or image.  Turning off SVE on my monitor does not fix this shadow problem.

djordjebg

Actually, the shadow outline around text when scrolling, around images when panning, and around window frames when moving windows, does not really bug me, although it would have been nice if it did not happen or if there was some OSD option that I could tweak to get rid of it (turning off "Smart Video Enhance" does not get rid of it).  Perhaps Chris M or someone at Dell could respond with a possible OSD adjustment?

Oddly enough, these artifacts do not show up when watching videos or playing video games (and I kept carefully looking for the colored shadows on videos with my eyes placed six inches from the screen but could not see any).  The severe inverse ghosting that affected Rev.A00 was FAR more distracting in appearance.  The anti-glare coating on this U2413 is PERFECT, by far the best anti-glare of any UltraSharp that Dell has released in previous years.  I also have zero backlight bleed and a small amount of the usual IPS glow in the lower two corners of the display.

My two main complaints about the Rev.A02 version of this U2413 is the cyan tinting around text during scrolling (not a big deal-breaker for me because I only quickly scan text and I do not read text while scrolling) and that the "Uniformity Compensation" feature is stupidly designed.  The "Uniformity Compensation" does seem to even out the display uniformity, but if you turn it on, you must use an overly bright 'Brightness' setting of 50% and you cannot use AdobeRGB or sRGB modes, so those constraints make that feature practically useless to me.   The uniformity correction on NEC and Eizo displays is designed correctly.

There is also a pea-sized blue-green tint in the lower left corner and a purple-magenta tint in the lower right corner that is only visible with a white or light background, but during actual use, I never notice them at all unless there is a wide expanse of white background being displayed in the lower corners.

I spent many weeks looking at 24" IPS display (27" is a bit too big for my preference), including considering the U2412M, the Asus PA246Q/PA248Q/PA249Q, and many others.  This was the best 24" IPS for the price, and I am happy with it overall.  And I actually utilize a full end-to-end 10-bit workflow with a 10-bit-color-compatible Nvidia Quadro graphics card for this U2413, and I hardware-calibrate its LUT with the X-Rite i1Display Pro.  For people who do not have a full 10-bit-color workflow, do not hardware-calibrate, and do not require high-resolution color accuracy, there are many less expensive display options (the U2412M could suit them better).  If I was a professional graphics designer or professional full-time photographer, I would choose the $800 NEC PA241W, which is better than the U2413 in all areas... but it is also $300 more...  

Just as the inverse ghosting from A00 no longer happens in A02, perhaps the scrolling shadow problem may be fixed by the time that A03 or A04 come out?  (and then I would think "darn, I should have waited another six months before buying this")  Or maybe this shadow tint problem will still be in A05...   In an ideal world, users could update the firmware on monitors just as they can now upgrade (or downgrade) the BIOS and drivers on PCs.

Ahh, that explains it then!  Yes, your A00 does have inverse ghosting due to too much response time compensation overdrive.  Somewhere between A01 and the A02 revision that I have (manufactured in May 2013), Dell toned down the overdrive and the inverse ghosting has been totally fixed.  Inverse ghosting is an artifact of overdrive and it changes colors depending upon the text or image color, whereas my text always shows the same cyan shadow when scrolling and images show the same cyan outline on the leading or trailing edge when panning.  As I mentioned in the previous post, I do not like this, but it also does not bug me.

I presume that the replacement monitor that you got was also A00?  Can you ask the seller to exchange for an A02, or at least an A01 revision?  I do not know if A01 has inverse ghosting, but A02 definitely is free of it.

Yes, the replacement is also A00.  I went cheap and bought a refurbished U2413, so it looks any exchange I get will be defective.  In the past Dell refurbs have been great, maybe a few dead pixels but I can deal with those in exchange for saving a few hundred bucks.  The overdrive ghosting is NOT something I can deal with for any price.  In OS X any save/open "sheet" slides down from the toolbar and activates the overdrive feature.  Page up/down activates the overdrive.  Moving any windows activates it.  It is ubiquitous during normal computer usage.  

I mean the first revision, so A00.

It's definitely the overdrive feature.  For light grey window borders, the reverse ghosting is green, but for dark borders it's cyan.  It does not show up when watching videos, and I'm not a gamer so I cannot comment on games.  

I have Dell IPS displays for my Mac Pro and two Mac Minis, and in the past 7 years have bought about a dozen Dell displays.  The older CCF backlight Dells are amazing.  Then I bought a U2412M for the Mac Pro and got disgusted with the cool blue tint that could not be calibrated away so I tried this U2413 which solves the blue tint and has a great AG coating, but is plagued by the overdrive issue.  All of my Dell IPS displays have uniformity issues, with hue shifts between different halves of the screen:  for example, the U2413 has a green tint on the left half and a red/cyan tint on the right half.  I figure the tinting issue is the price of a cheap IPS display, and it's mild enough to get used to.  But the overdrive issue only grows more annoying.  Every time I move a window or page down/up on a web page I'm reminded of what Dell has done to me with this expensive display.  

I'm flabbergasted that a company would release this monitor with such a problem.   I bought this display refurbished from a seller that will do exchanges but not returns, so I exchanged the monitor and the replacement has the same overdrive problem.  From online reports it appears that all U2413 A00 monitors have the same defect.  What makes it so infuriating is that it's not a build quality issue of the sort usually found on early production runs.  This is a design flaw - someone actually thought this sort of overdrive behavior was a good idea.  

Agree that the uniformity compensation is worthless.  With it on, screen brightness is so high that it would need to be in direct sunlight to be of any use.  

I also use an X-Rite for calibration, and for static images this display is beautiful.  Start using the computer, and the overdrive feature quickly disabuses one of any notion to buy another Dell product.

These displays have the feel of having been designed by a committee more interested in marketing bullet points than actual usability.

On my A02 revision, the cyan tinting only happens on text if I am using the mouse to drag the scrollbar on the browser to scroll the Web page.  But I perform most of my scrolling using my mouse wheel (scrolling 8 to 16 lines at a time, not mouse wheel panning), and I drag the scrollbar mainly to center an image or block of text, and the cyan shadow does not appear when scrolling using the mouse wheel or when pressing [Page Up] or [Page Down] keys.  When I drag the scrollbar on Microsoft Word, there is not shadow effect on the text, but if I move the Word window around the desktop, both the window frame and the text then show the cyan shadow until I stop moving the window.

If this shadow effect had also shown up on videos and video games, I would have definitely returned the monitor.  But since it only temporarily appears during drag-scrolling/moving of windows and text pages and during click-and-drag-panning of images, it is a bearable quirk since the image quality and color resolution are outstanding.  In a way, the cyan shadow that clings to the leading or trailing edge of image/text borders looks like the "mouse trails" effect that Windows has as a mouse option.  If you set that option to give your mouse a slight trail as you move the cursor around, that is what this cyan shadow reminds me of.

While I was investigating this cyan shadow issue, just by pure accident, I noticed that one of my four Dell laptops/ultrabooks/netbooks also shows a thin red-colored shadow when I scroll text, move windows frames, and pan around images.  I have had this TN-panel laptop for more than two years now and I guess that I never noticed its shadow when scrolling/panning until I specifically went looking closely for it.  My other three laptops do not have this shadow problem. So... who knows why this happens... it could still be due to aggressive use of overdrive like the inverse ghosting problem in revision A00, or it could be due to some other factor.

There is no confirmation that Dell solved overdrive issue on U2413 and above models. Chris from Dell said several times that they don't accept this as a problem and that Dell will not address this issue.

Where did you get this information?

I am not absolutely certain that Dell "solved overdrive issue on U2413" since Dell tends to be very mum about all their updates to monitor revisions.  Unfortunately, unlike the BIOS and drivers on Dell's computers where they usually (but not always) describe what has been fixed or enhanced with each update, as far as I know, there is no way to find out the details of what was fixed or enhanced in going from revision A00 to A01 to A02 on the U2413.  I am very certain that Dell keeps track of the firmware changes (and perhaps even hardware changes) that go with each revision, and it would be really nice if they would publish that change-log information to the public.  But other monitor manufacturers also do not publish this information.  Who knows... perhaps if we all knew what was being fixed or enhanced with newer monitor revisions, since we cannot update the firmware ourselves, people would be exchanging monitors at an even higher rate than they currently do in hopes of updating to the latest revision.

I can only speak from my experience of using two U2413 monitors daisy-chained via DisplayPort for the past five weeks.  My two A02 monitors do not have any inverse ghosting problem, and I know what overdrive-induced inverse ghosting looks like.  Perhaps I got lucky and received the only two Rev-A02 monitors that do not have inverse ghosting.  Getting a single U2413 without inverse ghosting may be a fluke, but getting two displays without the problem tells me that the problem has been fixed either intentionally or by circumstance.  So... regardless of Chris saying that "Dell will not address this issue", the inverse ghosting no longer shows up... whether you call that "fixed" or just "no longer happens".

In place of the inverse ghosting, Rev-A02 now has a cyan shadow effect on text when scrollbar-scrolling and page panning, on images when mouse click-and-drag-panning, and on window frames when moving windows.  Unlike the severe A00 inverse ghosting, this cyan shadow does not bug me.  As I previously mentioned, if this shadow effect also appeared on videos and video games, that would be a deal-breaker and I would have returned the monitors.  On one monitor, the shadow is a medium cyan color about 1mm to 2mm in width on the leading or trailing edge, depending upon direction of scrolling/panning/dragging.  On the other monitor, the shadow is a very light semi-transparent cyan color about 2mm to 3mm in width.  As I mentioned in the earlier post, while I was scrutinizing this shadow effect, I noticed that one of my four Dell laptops also has the exact same shadow, but in a red color and always a thin 1-mm width.  So a shadow has always appeared on that laptop's TN panel whenever I scrolled, but I never noticed it until now.  Perhaps this is an overdrive artifact or maybe this is due to something else.  Both monitors have a faint pea-sized color blob parked in the lower corners, a blue-green tint in the lower left corner and a purple-magenta tint in the lower right corner, about a half-inch wide and fading out about one inch from each corner, that is only visible with a white or light background

I like my two U2413 monitors, and I just ignore the cyan shadow because I tend to defocus my eyes anyway, quickly scanning, while scrolling/panning, and then resume my focus when I stop scrolling/panning.  I checked out both monitors using two colorimeters. I first calibrated both monitors using a Spyder4Elite. I then deleted the Spyder ICM profiles and hardware-calibrated using the i1Display Pro. There were some slight minor differences between the i1Display Pro and the Spyder4Elite calibration. Calibration of one monitor reported 100% sRGB, 97% AdobeRGB, and 95% NTSC color space coverage, while the other monitor reported a really excellent 100% sRGB, 100% AdobeRGB, and 99% NTSC color space coverage. I thought that this was too suspiciously perfect, so I recalibrated and got the same numbers again.  Neither monitor has a dead/stuck pixel, neither monitor has any detectable backlight bleed even in a totally dark room with a black background, and both have a small to medium amount of the usual IPS glow.

Perhaps I got lucky with getting two good monitors.  As a long-time Dell customer, I do think that their UltraSharp quality control has really gone downhill over the past 4 to 6 years.  Buying a Dell monitor used to get you a fairly consistent range of quality.  But nowadays, as Forrest Gump would say, buying a Dell monitor is like a box of chocolates; you never know what defects you're gonna get. You can still get a bad high-end monitor from NEC or Eizo, just as you can buy a defective DSLR from Canon or Nikon, but their quality standards are far more strict and you are less likely to get a bad sample.

I just received another refurbished U2413, revision A02.  The funky green ghosting is gone!  Dell recognized the problem and fixed it.  

Most likely Chris cannot admit the defect exists because it would open Dell up to.  Dell quietly fixed it while publicly stating the problem doesn't exist.  

Uniformity compensation has also been tweaked to a lower brightness, so it's usable now in a well-lighted room.  I still wouldn't use it at night, but it's a useful feature now.

Also fixed in the A02 revision is tinting issue I had with the A00 monitor being green on the left half and red on the right half.  

Yet another fix:  the USB hub now works perfectly!  My revision A00 had a USB hub that only worked at USB 2.0 speeds and would not mount external drives.  The revision A02 hub works at USB 3.0 speeds and mounts drives perfectly.  

I'll amend my earlier statement about never buying a Dell product again to, never buy a first or second revision Dell product again.  They're beta testing these displays on the public.  Once they get the product right, it flat out rocks :)

Regarding your "ghosting", is it like the cyan shadows that I described (e.g. only appears during scrolling/dragging/moving of windows and text), and does it cling to the borders or lag behind the moving object?

Regarding your USB issues, do you have another USB3-equipped laptop or computer that you can temporarily plug the monitor into, just to test the USB?

I have my two monitors plugged into a Dell Precision M6700 laptop and the USB ports work without issues at 3.0 speeds.

rGiskard

That is great to hear!  :-)  It sounds like your A02 is similar to my two A02 monitors now.  I still always turn off Uniformity Compensation because I mainly use my U2413 for photo, graphics, and video editing in a dark or unlit home office at night, and with low ambient lighting, UC unadjustable brightness is still too bright.

Do you now have a slight cyan shadow when you scroll text, pan across images, and move windows?

Do you have a pea-sized blob of faint blue-green color in the extreme lower left corner and a purple-magenta color blob in the lower right corner like my two U2413 monitors?

Speaking of color weirdness, you should always never use the "Smart Video Enhance" option.  Unless Dell fixes SVE in a later revision, it is too obnoxious and intrusive when watching videos or playing video games as it constantly screws around with color hues, temperatures, and saturation levels.  And even though it is supposed to enhance (*cough*) videos, when panning across images during graphics/photo editing, it will shift colors while you are panning static images too because it mistakens the image being dragged-and-panned as a video being played.

Two years ago, I once told a friend, as I was shaking my head: "Never buy an A00 revision of a Dell monitor these days."  Some software companies also rush products to market, and I never buy version 1.0 of their software either.  But unlike software products, and unlike the BIOS and drivers on Dell computers, you cannot update and patch the firmware on a monitor, so you are forever stuck with a half-baked A00 revision (unless you can exchange it ;-)