Hi, and welcome :smileyhappy:

Here are some free test programs:

WIndows
gradlin-v0.2-fs.exe - RGB gradient test screens

Checkemon - Test screens for solid color, gradients & more.

Softcare Monitor Test - Test screens for vertical and horizontal gradients, solid colors, geometry & more.

EIZO Monitor Tester - 24 test images for geometry, convergence, brightness, homogeneity and panel response time.

Dead Pixel Buddy - Solid color test screens

Undead Pixel - Solid color test screens, pixel flasher.

Dead Pixel Tester - Solid color & gradient test screens, pixel flasher & more.

Nokia Monitor Test - Test screens for color, resolution, brightness, contrast, geometry, focus, readability and more.

NEC Monitor Test - Test screens for color, resolution, brightness, contrast, geometry, focus, readability, and more.

Pixel Persistence Analyser - Tests for pixel persistence (aka 'ghosting') in LCD displays. Interprets user adjustments to test screens, and returns numerical values for Gamma Factor, Transition Time, scrolling text readability and other criteria.

flatpanels.dk monitor test
Run online in window or fullscreen mode (suitable for Macs), or download executable fullscreen program for any resolution.

flatpanels.dk Input lag test
Can be used to test for input lag if you have 2 monitors connected. You will need a camera to record the counter.

Passmark Monitor Test (shareware) - 25 different test patterns including, Master screen, convergence,Contrast, Color scales, Fonts, Printer color calibration, Persistence, Gamma measurement, Zooming to verify power supply stability, Solid colors to test for missing or always on pixels.

Macintosh
PiXel Check - Check for dead pixels.

LCDTest - Test patterns include adjusting analog LCDs, detecting dead/lazy pixels, checking panel alignment, checking color transitions.


There's another list at Widescreen Gaming Forum - MONITOR ADJUSTMENT & TESTING TOOLS

Message Edited by gpro on 11-12-200605:08 PM

Thanks a lot.

ChrisM should make this a permanent sticky.

Chris, make this a permanent sticky, please.:)

Thanks

 Thanks for your help, I just got my monitor today.  It is a A02 :smileysad: but I am going to run the tests on it anyway.  I seriously thought I was going to get the A03 since I ordered last saturday.  Would it still be possible to exchange the monitor for a A03 even after the 21 days or do I have to do it within the 21 days period.

 

Thanks

Thank gpro, your effort is greatly appreciated!

Thanks a bunch, gpro, very handly list.

Another problem besides banding you can test is a weird afterglow when the panel's pixels switch from white to certain shades of grey, I assume it is a problem with Dell's overdrive technology, which is used to increases the response rate by using more voltage than necessary. But the Dell overshoots when transitioning from very close shades (white to light grey).

Tom's Hardware rates overshooting (but I couldn't a review of the 2407 there).
Read about Overdrive
Monitor with bad overdrive
Tom's overshooting rating


Now an example of the problem,
ericshufro from here made a picture to illustrate:
http://eric.shufro.com/2407-fail.jpg

Save/view the picture in a different window and drag it around, shows a green trail for me.

I also notice it when scrolling through some webpages, unforuntately I forgot which one. Quite annoying

I just received a new 2407 yesterday, and it's an A02. I was expecting an A03. It has banding in the vertical direction, but not in the horizontal direction in all image modes. It has pronounced afterglow when scrolling, which can be seen by scrolling on this forum's own pages. I've reduced the afterglow problem by reducing the brightness of the monitor, which has a default that's too bright. But the afterglow is still there. I'm debating whether to ship it back to Dell.

waterpile

Good job.

A lot of great informaton.

Glad it's part of the FAQ sticky.

Thanks.

---

@waterpile wrote:
Thanks a bunch, gpro, very handly list.

Another problem besides banding you can test is a weird afterglow when the panel's pixels switch from white to certain shades of grey, I assume it is a problem with Dell's overdrive technology, which is used to increases the response rate by using more voltage than necessary. But the Dell overshoots when transitioning from very close shades (white to light grey).

Tom's Hardware rates overshooting (but I couldn't a review of the 2407 there).
Read about Overdrive
Monitor with bad overdrive
Tom's overshooting rating


Now an example of the problem,
ericshufro from here made a picture to illustrate:
http://eric.shufro.com/2407-fail.jpg

Save/view the picture in a different window and drag it around, shows a green trail for me.

I also notice it when scrolling through some webpages, unforuntately I forgot which one. Quite annoying

---

interesting, that had been my guess as to the cause but I had never really known for sure.
they really munged the electronics.

Overdrive, firmware, current LCD manufacturing technology just for starters.