That DVI splitter is meant to connect one output to two different monitors. If you try to use it the other way and hook up two outputs (computers) to it, the will interfere and potentially cause damage to the graphics cards (depending on the output impedance, two different signals put to the same pin can cause high current flow).
If you make sure to only let one computer output to the DVI splitter, it might work, but I wouldn't recommend it at all. Depending on the actual electronic design of the video cards, it's possible to damage them when the DVI connectors are used as input.
Same goes for the audio splitter. Audio devices have the lowest possible (or as low as possible withing financial limits) output impedance, which will cause problems when you put two sources on the same line.
Which input would be displayed if both PCs are on? – heavyd – 2014-07-24T22:41:20.913
@heavyd: i have no idea, will they conflict? – eadmaster – 2014-07-24T22:42:18.927
Just trying to help you think about it, and why it doesn't work that way. 1 signal -> 2 is easy.. always the same signal on all wires, 2 -> 1 you have to decided which one to display, so you need a switch of some kind. Not to mention the gender on your connections would be opposite what you need. – heavyd – 2014-07-24T22:44:03.697
what if i connect only one PC at a time to the splitter? (the genders look correct to me btw) – eadmaster – 2014-07-24T22:46:07.523
@eadmaster What model of TV is it? Any LCD display I've seen with a DVI input is DVI-D, not DVI-I. – Jason – 2014-07-24T22:58:40.093
Philips 20PF4121 – eadmaster – 2014-07-24T23:00:03.073
@eadmaster Interesting. You realize 640x480 is a lower resolution than the minimum requirement for most modern operating systems? – Jason – 2014-07-24T23:26:58.213
@Jason: yep, i'm going to use it only to play old games... – eadmaster – 2014-07-24T23:30:35.250