Is it possible to connect three monitors to two video cards?

Question

Video cards

Hello!
There is a PC with the following configuration:
Mat. board: Gigabyte 970a-ds3p
Processor: AMD FX 4300
Video card: Nvidia GeForce 210 1024 Mb (DVI + HDMI + VGA)
Windows 7 x64
Two monitors are connected to the PC - VGA and HDMI outputs are used.
Task: Connect a third monitor.
I connect a third monitor to the DVI output, it is detected in Windows, but you can’t extend the desktop to it - one of the outputs works: either DVI or VGA.
Q: How to connect a third monitor?
I am considering installing a second similar video card, since the motherboard has two PCI-E slots. Will it be possible to extend the desktop to a third screen in this case?

Answer 1

Well, first of all, it was impossible to connect three monitors for invisibles (at that time, on those cards), only two.
Second, it's written in the nVidia control panel.
Third - Ubuntu, Geforce 210 and two monitors?
Fourth,

I am considering installing a second similar video card

in general, any will do, even the cheapest.