help! mac pro + dell e207wfp= screen cutting out

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help! mac pro + dell e207wfp= screen cutting out

Help!

I have a mac pro with the ATI 512mb card and 2 Dell E207WFP 20" lcd displays. i've been using this system for a little while now and so far its been great. well i moved my computer today to do some testing on another project, along with one of the lcd's. and now, im back home with everything plugged back in, and every 5 minutes or so the lcd that i had brought out today is cutting to black for about a second!! this is driving me crazy, I cannot work like this. is it a problem with my video card or my monitor? i have everything plugged in perfectly, no wires being bent, etc. is it the lcd or my card? thx!

MacPro Quad Core 2.66, Mac OS X (10.4.9)

Posted on May 25, 2007 6:58 PM

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Answer 1

May 26, 2007 1:29 AM in response to thepagman

Hi thepagman,

just some ideas. It is only one display that flickers? Then try switching the video ports. Swap the video card output of one monitor with the other. If the monitor still flickers, it is most likely the monitor or the cable (you can exclude this by switching the cables as well). If now the other monitor flickers, it is probably the graphics card.

Hope that helps, Lars

12" PowerBook G4 - 1.25 GB RAM - Mac Pro - 2 GB RAM - Mac OS X (10.4.9) - 40 GB iPod 4G

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Answer 2

Jun 24, 2007 6:00 PM in response to thepagman

I have developed this problem recently on my Mac Pro with two Dell 2407s. The screen goes black on each then comes back to life. The Dell's report no input when they go black.

As I also run Windows XP under BootCamp on the mac Pro I was able to confirm this WAS NOT happening under Windows XP so was able to rule out hardware as the cause.

I didn't find an answer to the problem online so called Apple Support.

They had me move the Desktop Folder in my Users\'username'\Library\Caches folder onto the Desktop and then do the same with the com.apple.desktop.plist preferences file from the users\'username'\Library\Preferences folder.
Then restart the computer.

So far it seems to have fixed the problem. They indicated the files moved to the desktop could be deleted as OSX generates new preference files when restarted if it can't find the originals in the correct place.

I hope this helps.

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