thanks for checking the 75Hz, was worth a try as i know it impacts RTC on some models.
Regarding the time the screen is left on....if the issue is related to the RTC / overdrive control as it appears, then it's an overshoot issue where the liquid crystals are forced to make a larger change in orientation than they really need to. This is the principal behind overdrive really, since an extra high voltage is applied to boost the LC's into a new orientation faster, often by going past their required state / orientation and relying on the smaller "fall time" to quickly get back to the desired state.
So in this instance, the LC's are trying to change to a dark colour (seems to happen on dark backgrounds from what i can tell) from a light colour, but are overshooting to an even darker (even black) colour where they have aligned themselves too far. I would imagine that this is more pronounced once the panel has been on a little while and everything has "warmed up". trying to explain that in a crude and simple way so people can follow. hope it makes sense :)
no problem :) Glad i could help. I'm hoping to have chance to test a 2407WFP-HC next week myself, so i'll run a few checks and ideas i have. I can also calibrate with my LaCie Blue Eye Pro colorimeter so we should at least know once and for all whether any form of calibration (ICC profile, basic OSD or full GFX card LUT adjustment) helps at all
will report back obviously when i have had chance to play
Hello everyone, today my order of the 2407-HC was delayed.
"
Although we had anticipated being able to ship your order sooner, we are experiencing an unexpected delay and have adjusted the estimated ship date" Revised Est. Ship Date 09/13/2007
I really want this monitor so I don't mind waiting for a rev 01 or 02 as long as it doesn't have the ghosting and other problems mentioned. Assuming that is the reason of the delay which I hope it's. Anyway I hope this delay mean something good. So people that already have this monitor are those settings doing anything? do they fix or not the problem? is there any videos with the new settings showing the improvement is present?
I am hoping for a new rev. I still think settings can't fix those problems but I will wait to see the results.
Message Edited by DimensionGoku on 09-06-2007 01:12 PM
I have had my 2407WFP-HC for almost a week and I experience the same issue. To confirm this, I reset my monitor to factory defaults and dragged around a white window on a dark gray background. This resulted in a dark ghost/after-image as other posters have described.
The monitor just came in today, but I won't be able to try it out until I get home from work. I'd like to hold onto it and just get it fixed if it ends up being one of the problematic screens because of the price I paid for it (the sale price). However, if that is not the case, and the monitor is problematic, should I return it?
I'm in Estonia and got my HC few days ago, the monitor is made in Czech Republic.
I've calibrated mine with Gretag Macbeth Eye on Display 2. The resulting values:
- Brightness 2 , the maximal measured was 300
cd/m², the minimal that could be set were 137, looks too high?
- Contrast 61, the weird thing was that it was hard to push the contrast in the needed zone since between 60 and 62 the contrast jumped like crazy, although when decreasing from 100 to 62 and from 62 to 40 it was changing gradually.
- RGB: 93, 85, 88.
I see ghosting only in PixPerAn so far, couldn't find it in games, though I do not play WOW or what that name were. Ghosting when moving windows around is minimal, actually I didn't see it until I found out that there is a ghosting problem and checked using camera.
I just received my 2407WFP-HC Tuesday,9/4/07. I do a little bit of everything on my system from web surfing to gaming to watching HDTV with an OTA ATI HDTV tuner card. I have a EVGA 8800 GTS Superclocked video card w/ v.162.18 driver. I expected and have a little ghosting moving the cursor and open windows. But I get slight to really bad motion blur playing videos, DVD and HDTV depending on the content. It's really bad when the camera on the screen is panned across the scene. It gets so bad it's unwatchable and sickening. I haven't played any games yet but running the FEAR in game benchmark I didn't notice any ghosting. I see I'm not the only one disappointed by the performance of this otherwise fine monitor. I like white to be white not pink or blue so I set the Color Settings to Custom Color and left it at default setting. I also lowered the brightness to 40. The manufacture date is August 2007. The Rev is A00. I'm glad to see someone is responding to the problem. FYI: I was running a BFG 7800 GT OC video card and Gateway 21" widescreen monitor. I didn't have any ghosting or motion blur with this set up. Then I got the EVGA 8800 GTS Superclocked card and started getting slight motion blur with video but games looked good plus I could turn the eye candy all the way up with very high frame rates (woohoo!). The reason I got the 8800 is to upgrade to the 2407WFP-HC.
Sorry Mobious if this reply is targeted toward you. I mean this reply and my first to this forum as a whole not just one member. I'm confused about posting a message or a reply. A message seems to mean posting about a new subject. But a reply seems to require a reply to a forum member. Anyway back to the subject on hand. I've had a little more time to play with my monitor. Like I said before I had set the Color Setting to Custom Color at default settings to get the whitest white. I have moved all RGB settings down to 85 which seems to reduce the ghosting and in my case severe video motion blur a little bit. It's still present but not as annoying. When I adjusted all settings lower than 85 I couldn't maintain a white screen. The screen would turn grey and I couldn't make it white at all. I had the brightness at 40 then raised it back to 50. Two other odd things I found, first moving the brightness down gave the white a green tint and moving it up a red/pink tint. Second, adjusting the contrast all the way down turns the the screen completely black. Is it me or does it seem that the brightness adjustment should be the contrast and visa versa? Any word on what Dell has come up with?
We have several teams investigating the issue but have yet to discover the root cause. Until we know the root cause, we cannot have a corrective action plan. The discussion about poor control of the RTC (Response Time Compensation) technology and aggressive overdrive on TFT Central is currently under investigation.
You may return the monitor now or wait for us to announce our findings. If you decide to return the monitor now for credit, contact
Customer Service (Chat, Email, and Phone). They will need the following information -
20 digit PPID number on back of monitor
Name, address, phone, email address
Order number
Return Reason
The monitor warranty coverage is as follows -
* If you purchased the monitor tied to a PC, the PC warranty coverage applies to the monitor (either the 90 day, 1 year, or the 3 year plan)
* If you purchased the monitor by itself, you paid for either the 3, 4, or 5 year monitor warranty coverage plan
I can say that there will NOT be any in-home bios flashing of the monitors. If they decide that a fix can be implemented by bios flashing (which is just conjecture at this point), this will be done by us on the factory level.
Chris, I take it that if we do decided to wait until the corretive plan is announced, we will still be able to get a "new" Monitor replacement with A01 revision? This is important because I'm still within the 30 day return policy for a week or so...
Badd1
34 Posts
0
September 6th, 2007 15:00
Regarding the time the screen is left on....if the issue is related to the RTC / overdrive control as it appears, then it's an overshoot issue where the liquid crystals are forced to make a larger change in orientation than they really need to. This is the principal behind overdrive really, since an extra high voltage is applied to boost the LC's into a new orientation faster, often by going past their required state / orientation and relying on the smaller "fall time" to quickly get back to the desired state.
So in this instance, the LC's are trying to change to a dark colour (seems to happen on dark backgrounds from what i can tell) from a light colour, but are overshooting to an even darker (even black) colour where they have aligned themselves too far. I would imagine that this is more pronounced once the panel has been on a little while and everything has "warmed up". trying to explain that in a crude and simple way so people can follow. hope it makes sense :)
Badd1
34 Posts
0
September 6th, 2007 15:00
will report back obviously when i have had chance to play
DimensionGoku
77 Posts
0
September 6th, 2007 17:00
Message Edited by DimensionGoku on 09-06-2007 01:12 PM
detrino
1 Message
0
September 6th, 2007 18:00
o2012o
8 Posts
0
September 6th, 2007 19:00
dczZz
15 Posts
0
September 7th, 2007 00:00
dczZz
15 Posts
0
September 7th, 2007 04:00
szz743
3 Posts
0
September 7th, 2007 04:00
FixIt57
16 Posts
0
September 7th, 2007 09:00
Message Edited by FixIt57 on 09-07-2007 06:00 AM
gtoviper
8 Posts
0
September 7th, 2007 19:00
FixIt57
16 Posts
0
September 9th, 2007 07:00
DELL-Chris M
Community Manager
•
56.9K Posts
0
September 9th, 2007 12:00
We have several teams investigating the issue but have yet to discover the root cause. Until we know the root cause, we cannot have a corrective action plan. The discussion about poor control of the RTC (Response Time Compensation) technology and aggressive overdrive on TFT Central is currently under investigation.
You may return the monitor now or wait for us to announce our findings. If you decide to return the monitor now for credit, contact Customer Service (Chat, Email, and Phone). They will need the following information -
20 digit PPID number on back of monitor
Name, address, phone, email address
Order number
Return Reason
The monitor warranty coverage is as follows -
* If you purchased the monitor tied to a PC, the PC warranty coverage applies to the monitor (either the 90 day, 1 year, or the 3 year plan)
* If you purchased the monitor by itself, you paid for either the 3, 4, or 5 year monitor warranty coverage plan
I can say that there will NOT be any in-home bios flashing of the monitors. If they decide that a fix can be implemented by bios flashing (which is just conjecture at this point), this will be done by us on the factory level.
Morbidjuh
4 Posts
0
September 9th, 2007 13:00
gtoviper
8 Posts
0
September 9th, 2007 15:00
Gulielmus
7 Posts
0
September 9th, 2007 20:00
Message Edited by Gulielmus on 09-09-2007 07:40 PM