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Windows 7: no DVI output?

22 Jan 2010   #11
Jonathan_King

Windows 7 Professional x64
 
 

Get a new card. That's the best I can tell you.


My System SpecsSystem Spec
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22 Jan 2010   #12
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by Viralmind View Post
the card is not bad.

as i said before dvi output works with xp with no flaws whatsoever.

ive tried another video card and the same results. no video with dvi.

edit: dvi does work in bios but stops when loading windows.
Did you say that the DVI output works with XP? I didn't see that. (And, I don't see it now, looking back through the thread.)

Can you boot Win7 in safe mode? That should avoid some things like graphics settings that are out of range for the monitor.
My System SpecsSystem Spec
23 Jan 2010   #13
Viralmind

Windows 7 Ultimate x86 (32 bit)
 
 

why would i get a new card when it doesnt work on any of the cards and they are all good?
i mean i eventually do want a new one, but i wanted to solve it bc i know its not a hardware issue.
My System SpecsSystem Spec
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23 Jan 2010   #14
Viralmind

Windows 7 Ultimate x86 (32 bit)
 
 

Quote   Quote: Originally Posted by bobkn View Post
Quote   Quote: Originally Posted by Viralmind View Post
the card is not bad.

as i said before dvi output works with xp with no flaws whatsoever.

ive tried another video card and the same results. no video with dvi.

edit: dvi does work in bios but stops when loading windows.
Did you say that the DVI output works with XP? I didn't see that. (And, I don't see it now, looking back through the thread.)

Can you boot Win7 in safe mode? That should avoid some things like graphics settings that are out of range for the monitor.
yeah, sorry.
i forgot to mention dvi works with xp and on bios before windows 7 loads.

ill try safe mode, i didnt think it would help, but i guess its worth a shot.
My System SpecsSystem Spec
03 Apr 2010   #15
andyong

Windows 7 Pro
 
 
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Have been trawling the net for ages looking for the solution as I had the same thing. Boot up in safe mode and all works fine through DVI. Boot up normally and you see as far as loading Windows 7, or whatever OS you are using, then as soon as it gets into windows you lose the signal. Also everything works fine if I use a DVI>VGA adapter but the image is signaificantly worse than if I use DVI digital. Anyways to cut a long story short the problem is that through some mechanism (in my case I had a gfx card failure that caused this) the EDID data on the EEPROM chip in your monitor has become corrupted. You will need the full registered version of a tool called Powerstrip made by Entechtaiwan to attempt to correct this. The trial version doesn't have the feature required to attempt this.
When it's installed and registered shutdown your PC. Make sure you have connected the faulty monitor only using the DVI digital cable to the graphics card. Disconnect other monitors if you are using more than one. Boot up into safe mode (keep pressing F8 while booting up to get the option to boot into safe mode).

Start up Powerstrip and right click on the System tray icon. Go to Options > Monitor Information. It will probably just say the manufacturer is Microsoft and the Model ID is Default Monitor or something instead of your actual monitor details. At the bottom where it says Options select the option to Update EDID. Follow the instructions to detect an EEPROM device, and hopefully it will detect you have corrupt headers and it will ask if you want to correct them. Select yes and follow the prompts. At the end it will ask you to restart. Hopefully you should be all good after the restart.
I used version 3.83 of Powerstrip for this and originally received an error saying "An EDID EEPROM was not found" when scanning for the EEPROM but this is because this version didn't have support for updating the EDID on a Geforce 275. Tried the same procedure on a geforce 6600GT on my old PC and it worked perfectly.
If this doesn't sort your problem you can try and locate a full EDID export for your monitor and use the same procedure to upload it but there are some additional steps you need to know doing it this way so read the full article that helped me resolve this at Fixing EDID on DVI Monitors Showing No Signal When Windows Vista Boots - Komeil Bahmanpour
My System SpecsSystem Spec
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 no DVI output?




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