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Windows 7: DVI issue with Nvidia 6600GT

10 Jun 2009   #11

Windows 7 x64

Quote   Quote: Originally Posted by silver2wind View Post
But if it was the monitor why does it work with a DVI signal all the way up until the windows loading symbol shows up?

Either way I've been wanting to get a dvi to hdmi converter to try the computer hooked up to the tv, I guess now's a good a time as any.
Since the screen works when you install a VGA adapter and use the VGA input it suggests that the screen's DVI input is being turned off. Your video card has two DVI outputs. If the signal were being cutoff at the card I figure the VGA adapter wouldn't make any difference.

I'm surprised that the screen menu doesn't offer you a VGA/DVI toggle since all of the dual input LCDs I've worked on have that feature. The screen should auto-detect the signal, but it should also be possible to manually select the input.

My System SpecsSystem Spec
03 Jul 2009   #12

Windows 7

I have exactly the same problem only with CoreI7 system (ASUS P6T DELUXE) and GTX260. There is a signal on DVI during all boot sequence till nvidia driver is loaded then I get "no signal". I've tried 2 different LCD monitors and 1 HDTV, HDMI and DVI cables, Windows 7 and Vista but the result is the same. However after the Windows is fully loaded (HDD led stops blinking) if I pull out my DVI cable from video card and plug it back I get normal desktop view, but to do it every time when Windows loads is not normal solution of this problem.

Any ideas?

P.S. With VGA cable connection via DVI-VGA adapter everything is ok.
My System SpecsSystem Spec
05 Jul 2009   #13

Windows 7 x64

I have too exactly the same problem But other system config.

  • win7RC1x64 and win7Build7229x64
  • using latest nVIDIA x64 driver for win7
  • In safemode works everything normal
System, se My System Specs
My System SpecsSystem Spec

11 Jul 2009   #14

Windows 7 RC1 Build 7100
Having the same DVI issue

See System Specs below:
I am having the same problem with a Chaintech Nvidia GeForce 6600GT video card with 1 DVI and 1 VGA port.

Monitor is an ASUS LCD with DVI, VGA, and HDMI.

OS is Windows 7 RC1 Build 7100 X64

DVI works fine during post and setup of windows. The Windows 7 splash screen even works, however once that is done the Monitor posts a "no DVI connection" message.

I have downloaded the latest Windows 7 drivers from Nvidia for this card and it still doesn't work.

I have check to make sure that it isn't the monitor by attaching it via DVI to another Windows 7 system with an onboard DVI connector and it works without issue.

This definitely has something to with the Nvidia card in my opinion.

If anyone finds an answer, please post.

System Specs:

OSWindows 7 RC1 Build 7100
CPUAMD Athlon 64 Processor 3200+ 2.00GHz
MotherboardFoxconn 6150K8MA-8EKRS 939 NVIDIA GeForce 6150 Micro ATX AMD
Memory 4 Kingston ValueRAM 1GB 184-Pin DDR SDRAM DDR 400 (PC 3200)
Graphics Card(s) CHAINTECH SE6600G GeForce 6600GT 128MB 128-bit GDDR3 PCI Ex
Sound CardOn Board
Monitor(s) Displays ASUS VH242H Black 23.6" 5ms HDMI Full 1080P Widescreen LCD
Hard Drives 1 Seagate Barracuda LP ST31000520AS 1TB 5900 RPM SATA 3.0Gb/s 3.5" Hard Drive
1 Western Digital Caviar SE WD3200JB 320GB 7200 RPM IDE Ultra ATA100 3.5" Hard Drive
PSU Antec TruePower 2.0 TP2-550 EPS12V 550W ATX12V SLI Certified
CaseNZXT Beta
Cooling 3 Rosewill RFA-120-BL 120mm 4 Blue LEDs LED Case Fan
My System SpecsSystem Spec
13 Jul 2009   #15

Windows 7, Linux

There is a simple solution to your answer, unfortunately you might need 2 monitors to do it. =( Most video cards DO have 2 outputs, but untill recently a lot of them had 1 agp out and 1 dvi. Well when they started all that, the agp was labled as the first monitor, and the DVI was monitor 2 (always by default). Ok so you have 2 options my bad, you either have to install windows with the DVI plugged in, or hook up 2 monitors at boot. Once you boot into windows configure your seccond monitor to be monitor 1 and your 1st to be the seccond work space. Now when you boot it won't go black, it's really going blank because windows tells the driver to turn off second unused dislplay because it's not configured. =) hope that answeres things, I know this because I used to do duel monitors as well as TV out, and all of them have to be configured just right. If you want TV for main you have to switch it in windows, vice versa for everything else
My System SpecsSystem Spec
12 Aug 2009   #16

Windows 7 RC1
same issue

I also have the same issue with my Geforce 8800GT - screen goes blank right as loading drivers when using DVI (I have both an Asus and Fujitsu monitor). Using a vga adapter fixes it.

This thread Black Screen on Windows 7 - Using nVidia and DVI cable suggests one possible solution. I think for now I'll just stick to the vga adapter until new drivers are released.

I am using Win7 Ultimate x64 RC1.
My System SpecsSystem Spec
12 Aug 2009   #17

Windows 7, Linux

No seriously, most cards have a Monitor 1 and Monitor 2, if monitor 2 is not enabled it always goes black in windows. switch monitor 2 for primary

Instead of attached, set to primary!!! really it's not that hard
My System SpecsSystem Spec
12 Aug 2009   #18

Windows 7 x64

After winXP nView from nVIDIA not exists!

My System SpecsSystem Spec
25 Aug 2009   #19

Windows 7 RC1
Problem Solved

I can confirm the post at Black Screen on Windows 7 - Using nVidia and DVI cable solved the issue.

Basically the current drivers (190.62 or 190.38) will not work. Uninstall in safe mode, download and install version 182.50 and DVI will be available again.

Anyone with the same issue of DVI not working on Windows 7 with latest nvidia drivers should try this. Ignore mushroomboy's comments, they are completely irrelevant and unhelpful.
My System SpecsSystem Spec

 DVI issue with Nvidia 6600GT

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