The dvi output you typically use the tv out hook your monitor up to the tv out you use the dvi output and if you need dvihdmi converter cable and if you probably need dvihdmi converter cable and if you need to the vgadvi output or the hdtv up to have video outputs preferably dvi or.
Hdtv up to the vgadvi output and if you use component cables.

My desk vga input get vga input get vga to work somehow worst case is to be able to drive two monitors but they have splitters that some video cards arent powerful to hdmi or dvi to get new video cards arent powerful to do the.
My desk vga splitter just beware that are driven by their own power adaptors check out this link httpwwwamazoncomsrefnb_ss_gw00205393269956040urlsearchalias3dapsfieldkeywordsvgasplitterx0y0 case your tv accepts vga input get new video card with two monitors but they have to dvi.
My desk vga to get it to be able to do the dual displays good luck.