No signal when using DVI

strakallah · 06-28-2006, 06:13 AM

I swear I always have the dumbest problems.

I got a new 19" BenQ FP91G+ Monitor
Running it through Nvidia 7600GT PCI-E

The monitor came with a VGA cable and an adaptor for DVI to plug into the card. When I run this configuration everything is great.

I went out and bought a DVI cable today, plugged it in and nothing..."No signal detected"

Now this is probably something extremely simple because it is my first DVI anything. I can't seem to find any specific instructions in the manual besides "plug it in and turn on the power"

strakallah · 06-28-2006, 06:50 AM

Also, I'll mention that I have gone to the monitor menu and selected Miscellaneous then selected the DVI option for input. The screen goes black for a second then comes back on (this is with the vga adaptor being used). But it keeps defaulting back to D-Sub

krepta7 · 06-28-2006, 12:55 PM

Usually this is because the video card isn't outputting to the DVI port. By default it will output to the VGA. Usually after 2-3 reboots it autodetects the DVI connection. You might be able to configure this better through the advanced display options in windows.

dai · 06-28-2006, 02:08 PM

have you gone into the monitor menu and set from annolouge to dvi

**TheMatt** · 06-28-2006, 02:41 PM

The GeForce 7600 is a dual DVI, have you tried the other DVI on it?

ebackhus · 06-28-2006, 03:20 PM

Most monitors that have DVI inputs use DVI-D signaling, or digital. If the DVI port on the card is a DVI-A (A for Ananlog) then it won't run the display. A DVI-I port does both. If you have a display with an analong (blue) cord then you can pop a DVI-VGA adapter onto the DVI port and see if it works. if it does then the DVI ports are analog or possibly DVI-I.

strakallah · 06-28-2006, 08:08 PM

From what I can tell I have the following
Vid card DVI-I
Monitor DVI-D
Cable DVI-I

strakallah · 06-28-2006, 08:31 PM

Quote:

Originally Posted by krepta7

Usually this is because the video card isn't outputting to the DVI port. By default it will output to the VGA. Usually after 2-3 reboots it autodetects the DVI connection. You might be able to configure this better through the advanced display options in windows.

Tried rebooting 4 times. Shouldn't it recognise it in the DOS bootup sequence anyway?

Quote:

Originally Posted by dai

have you gone into the monitor menu and set from annolouge to dvi

I do but it only comes up when I'm running annologue in windows. If I swap it to DVI it just swaps it back to annologue.

Quote:

Originally Posted by TheMatt

The GeForce 7600 is a dual DVI, have you tried the other DVI on it?

I've tried both. Both work with Annologue but neither work with DVI.

**TheMatt** · 06-28-2006, 08:44 PM

A DVI-I connector will not fit in a DVI-D slot. Here are pictures of the two. Top is DVI-D (digital). Bottom is DVI-I (digital + analog). Check.

strakallah · 06-28-2006, 08:52 PM

It definatly fits and I see what you're saying but the female plug on the monitor has those 4 prongs for DVI-I but the manual for the BenQ monitor says DVI-D

The video card, monitor and cable all have those 4 prongs. I have physically looked at all of them

**TheMatt** · 06-29-2006, 08:30 PM

What happens if you use a DVI-D cable instead of DVI-I? Try that. You might not be able to use both the analog and digital of the DVI-I at the same time.

strakallah · 07-01-2006, 08:56 AM

I've picked up a D cable from ebay for $2. Should get it tomorrow.

**TheMatt** · 07-01-2006, 12:05 PM

Let us know how it goes.

strakallah · 07-05-2006, 03:46 AM

The answer was a DVI-D cable and it's not exactly how shown in all the images I've seen here or on the net.

It has gaps between the left set and right set of teeth.

Also, not sure why I bothered. I can't tell the dif in picture.

**TheMatt** · 07-05-2006, 09:46 AM

Glad you got it working.

strakallah · 07-06-2006, 05:26 AM

Just FYI
This is the cable (for anyone who has the same problem)

This is remotely hosted. I'm not sure if you want to host it on techsupportforum.com in case the image expires.

06-28-2006, 06:13 AM	#1 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	No signal when using DVI I swear I always have the dumbest problems. I got a new 19" BenQ FP91G+ Monitor Running it through Nvidia 7600GT PCI-E The monitor came with a VGA cable and an adaptor for DVI to plug into the card. When I run this configuration everything is great. I went out and bought a DVI cable today, plugged it in and nothing..."No signal detected" Now this is probably something extremely simple because it is my first DVI anything. I can't seem to find any specific instructions in the manual besides "plug it in and turn on the power"

06-28-2006, 02:08 PM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,784 OS: win 7 32x 64x rtm	have you gone into the monitor menu and set from annolouge to dvi __________________

06-28-2006, 02:41 PM	#5 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,701 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	The GeForce 7600 is a dual DVI, have you tried the other DVI on it? __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

06-28-2006, 03:20 PM	#6 (permalink)
ebackhus Manager, Design Join Date: Apr 2005 Location: SATX Posts: 14,341 OS: WinXP Pro SP3/Windows 7 RTM My System Blog Entries: 28	Most monitors that have DVI inputs use DVI-D signaling, or digital. If the DVI port on the card is a DVI-A (A for Ananlog) then it won't run the display. A DVI-I port does both. If you have a display with an analong (blue) cord then you can pop a DVI-VGA adapter onto the DVI port and see if it works. if it does then the DVI ports are analog or possibly DVI-I. __________________ ----------------------------- There are no dumb questions, unless a customer is asking them. Help in the fight against cancer and other serious illnesses.

06-29-2006, 08:30 PM	#11 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,701 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	What happens if you use a DVI-D cable instead of DVI-I? Try that. You might not be able to use both the analog and digital of the DVI-I at the same time. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

06-28-2006, 06:50 AM	#2 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	Also, I'll mention that I have gone to the monitor menu and selected Miscellaneous then selected the DVI option for input. The screen goes black for a second then comes back on (this is with the vga adaptor being used). But it keeps defaulting back to D-Sub

06-28-2006, 12:55 PM	#3 (permalink)
krepta7 Registered User Join Date: Jun 2006 Location: Utah Posts: 32 OS: xp My System	Usually this is because the video card isn't outputting to the DVI port. By default it will output to the VGA. Usually after 2-3 reboots it autodetects the DVI connection. You might be able to configure this better through the advanced display options in windows.

06-28-2006, 08:08 PM	#7 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	From what I can tell I have the following Vid card DVI-I Monitor DVI-D Cable DVI-I

06-28-2006, 08:52 PM	#10 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	It definatly fits and I see what you're saying but the female plug on the monitor has those 4 prongs for DVI-I but the manual for the BenQ monitor says DVI-D The video card, monitor and cable all have those 4 prongs. I have physically looked at all of them

07-01-2006, 08:56 AM	#12 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	I've picked up a D cable from ebay for $2. Should get it tomorrow.

07-01-2006, 12:05 PM	#13 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,701 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Let us know how it goes. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

07-05-2006, 03:46 AM	#14 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	The answer was a DVI-D cable and it's not exactly how shown in all the images I've seen here or on the net. It has gaps between the left set and right set of teeth. Also, not sure why I bothered. I can't tell the dif in picture.

07-05-2006, 09:46 AM	#15 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,701 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Glad you got it working. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

07-06-2006, 05:26 AM	#16 (permalink)
strakallah Registered User Join Date: Dec 2005 Location: Melbourne, Australia Posts: 24 OS: XP	Just FYI This is the cable (for anyone who has the same problem) This is remotely hosted. I'm not sure if you want to host it on techsupportforum.com in case the image expires. Last edited by strakallah; 07-06-2006 at 05:27 AM.