i believe that it is more of a hardware issue than a software issue. I can imagine that if there was some way to put video through the headphone jack, which i assume is linked only to the sound card, somebody would have found it by now, or found something extra in there, more than just audio. the usb or the bluetooth could work, and there are ways to enable usb host mode, which would be needed to use a usb video adapter. and this video adapter
(link: http://www.newegg.com/Product/Produc...82E16815118301) ported for linux and adapted to be plugged into a mini-b usb port would work