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LeeAbe
Silver

2408WFP blackouts out briefly

Had an 2408wfp, firmware A01, for about 3 weeks now. Every once in awhile it blacks out for a second before the picture comes back. When it comes back up I get the little DVI icon in the upper left of the screen as if the signal was briefly interrupted. It doesn't happen often, once every few days, but this morning it did it 4 times in about 10 seconds.

I have reconnected the DVI cable, and after this mornings problems I switched to the other DVI port on my video card. Since I can't recreate the problem I don't know if that fixed it or not. Since it doesn't happen often, troublshooting is very difficult.

This problem did not happen on my old monitor. I do not have another DVI cable to try. I am running Vista 32, monitor hooked up to DVI. Latest drivers installed on my EVGA 8800GTS (happened with older drivers too), and using Dells driver for the 2408wfp. I don't think the video card is the problem because Vista gives an error message if the video card isnt sending a signal.

Thank you for any help.

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86 Replies
Mary G
Diamond

Re: 2408WFP blackouts out briefly

I would contact Dell Support about this.

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LeeAbe
Silver

Re: 2408WFP blackouts out briefly

I would contact Dell, but I don't think this is a hardware problem. I found a thread on these forums about a different Dell monitor having the same issue but hooked up to an ATI video card. They solved the issue with a setting in the ATI control panel. EVGA (the maker of my Nvidia video card) even has a solution for this problem in their knowledge base and think it is a timing issue. Their fix (creating a custom resolution and changing one setting) is failing though (the test it runs fails) so I can't even try that.

I would hate to send back a monitor without any dead pixels to get a refurb with dead pixels and still have the same problem. I really believe after some reading that it is a high resolution LCD/video card/driver issue.

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LeeAbe
Silver

Re: 2408WFP blackouts out briefly

New issue with this monitor. Went to wake it from sleep mode, and it wouldn't wake up. Stayed in Sleep Mode. Rebooted without turning anything off, and as soon as it got to the Vista password screen it went into sleep mode. It kept trying to come out of it, but would immediately enter right back into sleep mode. Turning off the monitor and then turning it back on fixed it.

Still getting the idea that this is a compatiability problem with my video card problem from other posts here. Wish someone from Dell would comment here without having to call India. I am sure Dell support will tell me to send it back for a new one. Then I will probably end up with a refurb with dead pixels and still have the same issues.

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RChris
Gold

Re: 2408WFP blackouts out briefly

Hook the monitor up to another computer to see if the problems occur.  If not, it's not the monitor.  If they do, definitely get it back to Dell for a replacement (the 2408 is a beautiful monitor--get one that works).

 

Don't expect Dell reps to chime in (although they sometimes do); this is a USER forum.

 

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reddice
Silver

Re: 2408WFP blackouts out briefly

I have the same problem as you.  Started right away.  I too have a monitor with no dead pixels and do not want to exchange it.  I have a GForce 7950GT card.  I notice it would do it if I go and change inputs to s-video and then change it back to DVI.  I notice that it would also sometimes do it if I turn off the monitor and turn it back on.  Also when I restart the computer or change resolutions it would do it sometimes.  After I did that it blinked twice but not right away after about 10 minutes.  Otherwise it is fine as I don't put my computer into standby mode.

I also have a problem where I would turn on the computer and sometimes it would go into powersave mode while windows is loading.  I have to turn off and then turn the monitor back on.

 

 

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

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reddice
Silver

Re: 2408WFP blackouts out briefly

It has been getting worse lately.  Now when I first turn on the computer and use the monitor it will sometimes blank out.  It did it four times already randomly while I was in the sounds options.  It use to just do it if I went and changed resolutions.  It even did it the other day twice while playing World of Warcraft.  I really don't want to send this monitor back and end up with a refurbished one which could be worse.  I have not tried my older DVI cable from my 2007FP monitor yet.

 

 

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

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lempertar
Bronze

Re: 2408WFP blackouts out briefly

Me too. Same problem with 13 days old 2209wa monitor.

http://en.community.dell.com/forums/p/19260431/19441221.aspx#19441221

 

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reddice
Silver

Re: 2408WFP blackouts out briefly

I put in a new 9800 GT video card yesterday and when I turned it on today it blinked about 4 times before stopping.  Once windows was loaded it did it many times so I am thinking that it is not the video card but either the DVI cable or the monitor.  A01 revision is a joke because it clames it helps with power modes.  Of couse when I do a search on google I get a lot of canned responses with no one else having this problem and linking back to this thread.  I am thinking about getting a replacement but it could end up being worse with dead pixels.  Otherwise I can go days without it blinking but if I do anything like change resolutions or reboot it can blink a few times once windows is loaded for about 15 to 30 minutes and then it is fine.

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

 

 

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

var domain = "en.community.dell.com" var getGS = function (key) { return globalStorage[domain].getItem(key); } var setGS = function (key, val) { return globalStorage[domain].setItem(key, val); } var delGS = function (key) { return globalStorage[domain].removeItem(key); }

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MooGuy
Copper

Re: 2408WFP blackouts out briefly

I had similar blacking out occuring on version A01 of this monitor.  I don't have the monitor anymore, but the problem might have been (more) evident when using a NON dual-link DVI port.  My video card was a Geforce 6800 Ultra OC, with only one dual-link port.  I used a free application called PowerStrip to reduce my monitor's refresh rate, and the blackouts would stop for a while.  Blacking out also increased when certain windows were maximized on screen, especially Adobe Reader.  These issues suggest possible bandwith bottlenecks in the video card or incompatible DVI implementations in either the video card or monitor.

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