Not able to use dual monitors ?

[padraic.tuohy]

Hi I recently built my own PC, everything works great apart from the fact that I cant use dual monitors. When I plug in the second monitor it will work fine for a few minutes, but than it will begin to cut out and start flashing on and off. I dont know what is wrong please help.

My PC specs are..
Gigabyte AMD GV-RX550D5-2GD 2 GB 128-Bit GDDR5 Memory DisplayPort/HDMI/DL-DVI-D PCI Express Graphics Card - Black

Corsair CMK16GX4M2A2666C16 Vengeance LPX 16GB (2x8GB) DDR4 2666MHz C16 XMP 2.0 High Performance Desktop Memory Kit - Black

Samsung (MZ-V6E250BW) 250GB EVO PCI Express 3.0 x4 NVMe Solid State Drive

MSI AMD AM4 B350 PC Mate Ryzen Gen DDR4 VRR M.2 Audio LAN ATX Motherboard - Black

AMD Ryzen 5 1600 Desktop CPU - AM4/Hex Core/GHz/16MB/65W

Corsair CP-9020121-UK CX Series 550 W CX550 ATX/EPS 80 PLUS Bronze Power Supply Unit - Black

Corsair CC-9011109-WW Carbide Series SPEC-04 Windowed Mid-Tower ATX Gaming Computer Case - Black/Grey

thank you,
Padraic

 

[superninja12]

did you insert both monitor cables into the graphics card?

 

[padraic.tuohy]

did you insert both monitor cables into the graphics card?

Yes the DVI works and the HDMI partially works, both are graphics card

 

[superninja12]

cable is not inserted well. else a broken cable or worst case monitor.

 

[padraic.tuohy]

cable is not inserted well. else a broken cable or worst case monitor.

Its neither, because with my old PC I was able to dual monitor with the same cables and monitors.

 

[nobspls]

Are you sure the same cable and monitors are still "same" as in perfect working order from before? Things do fail, and sometimes when you reshuffle equipment, that is when something that was just marginal and seemingly working well gets pushed over the edge. The important thing is to NOT make any assumptions and re-test and isolate the problem.

 

[padraic.tuohy]

Are you sure the same cable and monitors are still "same" as in perfect working order from before? Things do fail, and sometimes when you reshuffle equipment, that is when something that was just marginal and seemingly working well gets pushed over the edge. The important thing is to NOT make any assumptions and re-test and isolate the problem.

Oh I forgot to mention that I am using a VGA to HDMI adapter as my monitor only has DVI and VGA would this be part of the problem ? and I have switched cables and the same problem has occurred

 

[jfreggie2]

Exactly which VGA to HDMI adapter are you using?

 

[padraic.tuohy]

Exactly which VGA to HDMI adapter are you using?

HDMI to VGA, TechRise Gold Plated High-Speed 1080P Active HDTV HDMI to VGA adapter Converter Male to Female with Audio and Micro USB Charging Cable

 

[nobspls]

Do you have VGA monitor to borrow to test? If you can plug a vga monitor directly to the VGA port you can then pin the issue to the adapter.

Normally I'd suspect the hdmi cable, because I've had more than 1 hdmi cable that just went bad on their own with unknown/unexplained/undetermined causes. For years they worked great with the TV, then one day they were doing symptoms like what you've describe. I had go buy new hdmi cable and re-test and found the old cable was no longer reliable.

 

[padraic.tuohy]

Do you have VGA monitor to borrow to test? If you can plug a vga monitor directly to the VGA port you can then pin the issue to the adapter.

Normally I'd suspect the hdmi cable, because I've had more than 1 hdmi cable that just went bad on their own with unknown/unexplained/undetermined causes. For years they worked great with the TV, then one day they were doing symptoms like what you've describe. I had go buy new hdmi cable and re-test and found the old cable was no longer reliable.

Yes I think it was dodgy cable because its now working fine thank you !