ATI Raedon 1300/1550 S-Video (as a third screen)?

Feb 27, 2018
3
0
10
I have an ATI raedon X1300/X1550 with a VGI, DVi and S-Vid. I can use two right now, VGA and DVI but not sure if this S-Video could be my third (never tried it)? Can anyone confirm?