I am having cables built into my wall tomorrow so would need a quick answer. Please tell me which would be a better way (Picture quality wise) to hook up my computer to a 32" LCD: a 10m S-video to S-video cable or a 10m VGA to DVI cable? help
What type of DVI input does the LCD have?
If it is a DVI-D (digital only) input then a VGA to DVI lead wont work as VGA is analogue only.
If it is a DVI-I (analogue & digital) input then IMO VGA should give a better picture than S-Video.
Yes, DVI in any format will be better than S-Video.
If your graphics card is VGA only then you need the analogue input on the display (DVI-I), or a converter as suggested by Joe. If you have a DVI output on the graphics card then AFAIK it will be DVI-I and therefore have both digital & analogue video carried within the DVI lead.
The best explanation on the topic I managed to find so far:
This is a relatively new interface designed by the Digital Display Working Group (DDWG). Two main configurations exist: DVI-D for digital signals only, and DVI-I (integrated) for both analogue and digital signals. The majority of graphics cards use DVI-I ports and can be coupled with an LCD that has a DVI-D or DVI-I port for a pure digital-to-digital direct signal. If your graphics card only has a D-SUB port, then you need an analogue to DVI cable or a D-SUB-to-DVI converter (dongle) and an LCD monitor with a DVI-I port. In this case, youre monitor still has to convert the analogue signal into a digital one with a resulting loss in quality.