Well I already have a graphic card geforce 210 that has a dvi and a vga and two monitors are connected to it+ a third that goes on the onboard DVI port. I have no slot for another graphic card on this motherboard and it does not have a VGA on board, just a DVI and an HDMI. And the extra monitor I have does not have an HDMi input. So I am left with an on board hdmi port and a dvi monitor I am trying to hook together ....
what motherboard do you have? I've never seen a motherboard with hdmi. by the way, you should fill out your system specs so i don't have to ask these questions: Fill out your system specs (this tool may help you out a great deal).
Assuming your hdmi dvi cable is in working order, that would mean the computer is to blame for not generating a signal.
Not knowing why the dvi on the motherboard works, usually when a graphics card is connected to the board the onboard video is disabled. It could possibly only have disabled the hdmi (so take out the graphics card and see if both dvi and hdmi work simultaneously on the board).
Is there anything in the BIOS that talks about vga/dvi/hdmi as primary and secondary output?
It is normal practice for the on-board graphics chip to be disabled when a discrete card is discovered, some motherboards will have the option in the Bios to override this, (I have an ASROCK board that does), Also it is quite possible that the HDMI/DVI on the board is a hybrid and will not work together. Unless you have this option on the MB you are limited to either changing the board or sourcing a PCIe card that will fit the slots you have free, (possible but rare, and obviously limited in capabilities)
If the HDMI and DVi are both live on the motherboard then an adaptor may be an option ...
Windows 11 Pro x64 [Latest Release and Release Preview]
CPU
Ryzen 9 5950X, 3.8 - 5.2 MHz
Motherboard
Asus Prime X570-Pro
Memory
64GB [2 x 32GB] DDR4 3200MHz
Graphics Card(s)
4GB NVIDIA GEFORCE GTX 1650 Ti
Sound Card
On-board SPDIF to 5.1 System + HDMI [5.1 system]
Monitor(s) Displays
32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
Screen Resolution
2 x 3840 x 2160 @60Hz
Hard Drives
1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
PSU
NZXT C750 80 PLUS Gold 750W Modular PSU
Case
Workstation Case [Matt Black]
Cooling
NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
Keyboard
Logitech Wireless MX Keys & K400 + others
Mouse
Logitech Wireless MX Master 3S
Internet Speed
920 MB Down 50 MB Up
Antivirus
BitDefender Total Security Pro
Browser
Chrome (always run latest Non-Beta)
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
Samsung 10.2" tablet
Blackview TAB 8 4G Android Tablet c/w Keyboard
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control
Computer type
Laptop
System Manufacturer/Model Number
Dell XPS 17 10750H
OS
Windows 11 Pro x64 Latest RP
CPU
Intel I7 10750H 5.0GHz
Motherboard
Dell XPS
Memory
32GB [2x16GB] DDR4 2933 MHz
Graphics Card(s)
nVidia GTX1650Ti 4 GB GDDR6
Sound Card
Stock [Realtek] 4 Speaker
Monitor(s) Displays
17" IPS UHD+ Infinity Edge Touchscreen
Screen Resolution
3840 x 2400
Hard Drives
2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
PSU
Stock
Case
Stock XPS Aluminium & Carbon Fibre
Cooling
Stock - Active Fan Control
Keyboard
Backlit + Various Logitech
Mouse
Stock Track Pad + Logitech MX Trackball
Internet Speed
72 MB Down 18MB Up
Browser
Chrome
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
10.2" tablet
Sony Z3 Android Smartphone
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control Pad
10TB NAS
Thanks - I filled out the system specs. It is an intel DG67BL motherboard
HDMI<->DVI cable is working elsewhere
The bios of this motherboard does indeed disable the on board graphics when an additional card is identified. Yet there is an option to set it to "Always enabled" in the bios setup (F2 on hard reset). It was working fine for a long time, windows 7 had no problem identifying it
Bios setup had thw option "IGD Primary Video Port". It could be set to HDMI, DVI and auto. The side bar it says: "Auto will attempt to detect connected monitors and will display video on a maximum of two ports". So I concluded both DVI and HDMI can work, but perhaps not in presence of an additional card. I tried all three options. It made no noticeable difference
I will try next to remove the external graphics card
My Gigabyte motherboard also has onboard graphics, including VGA, DVI, and HDMI jacks --but it will not drive BOTH the DVI and HDMI jacks. Perhaps yours has the same limitation.
Windows 11 Pro x64 [Latest Release and Release Preview]
CPU
Ryzen 9 5950X, 3.8 - 5.2 MHz
Motherboard
Asus Prime X570-Pro
Memory
64GB [2 x 32GB] DDR4 3200MHz
Graphics Card(s)
4GB NVIDIA GEFORCE GTX 1650 Ti
Sound Card
On-board SPDIF to 5.1 System + HDMI [5.1 system]
Monitor(s) Displays
32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
Screen Resolution
2 x 3840 x 2160 @60Hz
Hard Drives
1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
PSU
NZXT C750 80 PLUS Gold 750W Modular PSU
Case
Workstation Case [Matt Black]
Cooling
NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
Keyboard
Logitech Wireless MX Keys & K400 + others
Mouse
Logitech Wireless MX Master 3S
Internet Speed
920 MB Down 50 MB Up
Antivirus
BitDefender Total Security Pro
Browser
Chrome (always run latest Non-Beta)
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
Samsung 10.2" tablet
Blackview TAB 8 4G Android Tablet c/w Keyboard
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control
Computer type
Laptop
System Manufacturer/Model Number
Dell XPS 17 10750H
OS
Windows 11 Pro x64 Latest RP
CPU
Intel I7 10750H 5.0GHz
Motherboard
Dell XPS
Memory
32GB [2x16GB] DDR4 2933 MHz
Graphics Card(s)
nVidia GTX1650Ti 4 GB GDDR6
Sound Card
Stock [Realtek] 4 Speaker
Monitor(s) Displays
17" IPS UHD+ Infinity Edge Touchscreen
Screen Resolution
3840 x 2400
Hard Drives
2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
PSU
Stock
Case
Stock XPS Aluminium & Carbon Fibre
Cooling
Stock - Active Fan Control
Keyboard
Backlit + Various Logitech
Mouse
Stock Track Pad + Logitech MX Trackball
Internet Speed
72 MB Down 18MB Up
Browser
Chrome
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
10.2" tablet
Sony Z3 Android Smartphone
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control Pad
10TB NAS
Hey that seems to be a workable and affordable solution ! Thanks much, Nigel ! I was not aware such things existed. It seems that there are pcie X 1 cards that can be added to my system. There are such cards that support 2 DVIs, I am still on the hunt but it seems that those are priced around $140 and will resolve this. I will report here my findings for other people. Thanks to everyone ! esp. Nigel
The problem, and the good thing , with all technology is the pace of improvement, involved, we often only look at the latest options.
It was not that long ago that the PCI-e x1 was the state of the art with regards to graphics buses, and it should still be possible to obtain reasonable quality output from one of these older fit cards - especially for a 3rd or 4th monitor on the system
Windows 11 Pro x64 [Latest Release and Release Preview]
CPU
Ryzen 9 5950X, 3.8 - 5.2 MHz
Motherboard
Asus Prime X570-Pro
Memory
64GB [2 x 32GB] DDR4 3200MHz
Graphics Card(s)
4GB NVIDIA GEFORCE GTX 1650 Ti
Sound Card
On-board SPDIF to 5.1 System + HDMI [5.1 system]
Monitor(s) Displays
32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
Screen Resolution
2 x 3840 x 2160 @60Hz
Hard Drives
1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
PSU
NZXT C750 80 PLUS Gold 750W Modular PSU
Case
Workstation Case [Matt Black]
Cooling
NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
Keyboard
Logitech Wireless MX Keys & K400 + others
Mouse
Logitech Wireless MX Master 3S
Internet Speed
920 MB Down 50 MB Up
Antivirus
BitDefender Total Security Pro
Browser
Chrome (always run latest Non-Beta)
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
Samsung 10.2" tablet
Blackview TAB 8 4G Android Tablet c/w Keyboard
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control
Computer type
Laptop
System Manufacturer/Model Number
Dell XPS 17 10750H
OS
Windows 11 Pro x64 Latest RP
CPU
Intel I7 10750H 5.0GHz
Motherboard
Dell XPS
Memory
32GB [2x16GB] DDR4 2933 MHz
Graphics Card(s)
nVidia GTX1650Ti 4 GB GDDR6
Sound Card
Stock [Realtek] 4 Speaker
Monitor(s) Displays
17" IPS UHD+ Infinity Edge Touchscreen
Screen Resolution
3840 x 2400
Hard Drives
2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
PSU
Stock
Case
Stock XPS Aluminium & Carbon Fibre
Cooling
Stock - Active Fan Control
Keyboard
Backlit + Various Logitech
Mouse
Stock Track Pad + Logitech MX Trackball
Internet Speed
72 MB Down 18MB Up
Browser
Chrome
Other Info
Also run ...
Laptop - Quad 8GB - Windows 10 Pro x64
Nexus 7 Android tablet x2
10.2" tablet
Sony Z3 Android Smartphone
Wacom Intuos Pro Medium Pen Pad
Wacom Intuos Pro Small Pen Pad
Wacom Expresskeys Remote
Loopdeck+ Graphics Controller
Shuttle Pro v2 Control Pad
10TB NAS
I bought a card called PNY NVS 300 X 1 (not X 16). This card has two outputs that can be either VGA or DVI-I and it works simultaneously with my other card GeForce 210 and with the onboard DVI port for a total of 5 monitors.
The good thing in this PCIeX1 solution is that there is still one more PCIe X 1 slot if more monitors are needed.
I hope this is helpful for somebody and thanks to those who tried to help me.