Diplayport "No Signal" Issue

[Devrim]

Hi. I'll try to tell the story briefly.

 

Currently I have MSI GTX 1660Ti card. It has 1xHDMI and 3xDisplayports

 

I have 27" Samsung monitor with 1 HMDI port. This is my main monitor connected via HDMI already.

And two 8"TFT screens (bought from AliExpress), each has 1xHDMI and 1xVGA port.

 

For connecting the 1660 to 8"TFTs, I've bought two "DP to HDMI" cables from a local store but something isn't working.

 

All cables connected to monitors. Main (27") monitor working but TFTs say "no signal" message on their blue screen. I change and search screen modes to get input from the 1660... no luck.

I changed 1660's power option, re-installed drivers, struggled in "multiple displays" section of NVidia Control Panel... no luck.

Windows' Screen Res page, "Detect" etc... no luck.

 

I thought something wrong with cables, but (for example) when I unplug 27" monitor's (HDMI) cable, one of 8" TFTs opens and shows my desktop!!! If I exchange the cables I can see my desktop on the other TFT too.

So, I thought the cables must be OK. I plug my 27" monitor's HDMI back again, and TFTs go black.

 

Apparently, 1660's ports are fine,

Cables look like working,

TFTs working,

but I can't get my desktop image on the three monitors at the same time!

 

Why is that?

 

Should I try other cable variations? "DP to VGA" cables? Or, DP>HDMI converter + HDMI cable?

 

Note: I had GTX 970 and these TFTs, and I could use multimonitor setup without any problem (with DVI-VGA cables of course).

 

If anyone any idea and help me, I'll be very pleased.

Thanks so much.

[Devrim]

Update: I bought two DP to VGA cables and everything works.

 

VGA is life. VGA is the future. :D :D

[The_Nephilim]

I would have thought you would need an active adapter as it is going from a digital signal to an analog one.. not sure why your cables work unless they are active cables?

[JayRoc]

Yes you would need active adapters to use more than 2 Monitors on digital signals. Club 3D has some.

[Devrim]

Thanks guys.

[BitMaster]

The adapters Devrim got most likely have a chip inside as afaik there is now other way to "translate" the signal from digital ones and zeroes to analog voltage amplitudes.