The new forums will be named Coin Return (based on the most recent vote)! You can check on the status and timeline of the transition to the new forums here.
The Guiding Principles and New Rules document is now in effect.
So I recently purchased a Sony Vaio FW model. It has an HDMI and VGA output. What I'm interested in doing is connecting my laptop to my television through the rca auxiliary ports in the front of the tv.
Can this be accomplished? If so, what do I need? Thank you.
I ran into some problems when researching on the net how to do this. A lot of people report that they use the cables and that only fuzz appears on their televisions. Something to do with the laptop not being tv out compatible unless its straight hdmi to hdmi or vga to vga.
You will not be able to see anything on your TV screen going from VGA to composite.
Computer output breakdown -
HDMI and DVI-D are digital out only. There is no analog signal whatsoever coming out of them and are completely incompatible with a TV analog input.
VGA is an analog signal split into Red/Green/Blue/HSYNC/VSYNC which is also completely incompatible with analog TV input
RCA/Composite is an analog "mix" of sync data with colorburst data multiplexed in. Computers don't generate this kind of signal without a modulator.
Now for the very bad news...
With a TV, on every line, the electron guns "smear" color across the screen, it's an analog signal based on voltage levels, not on digital ones and zeros. This means there is no concept of "horizontal resolution" for a TV, in fact there is no color separation at all. This means you are limited by the fidelity of the TV set which is quite low...
Rule of thumb is the "resolution" of a standard analog TV set is about 500x375. (Minus the Hsync bars)
to give you an idea of what resolution that is, here is my desktop sized to that resolution
Here is what it looks like at full size on a TV screen.
Good luck with that
Posts
To convert a VGA signal to Composite, you normally need a dedicated converter unit like this.
Don't bother looking for a HDMI to Composite adaptor - they are available, but they are extremely expensive ($150+)
Computer output breakdown -
HDMI and DVI-D are digital out only. There is no analog signal whatsoever coming out of them and are completely incompatible with a TV analog input.
VGA is an analog signal split into Red/Green/Blue/HSYNC/VSYNC which is also completely incompatible with analog TV input
RCA/Composite is an analog "mix" of sync data with colorburst data multiplexed in. Computers don't generate this kind of signal without a modulator.
Now for the very bad news...
With a TV, on every line, the electron guns "smear" color across the screen, it's an analog signal based on voltage levels, not on digital ones and zeros. This means there is no concept of "horizontal resolution" for a TV, in fact there is no color separation at all. This means you are limited by the fidelity of the TV set which is quite low...
Rule of thumb is the "resolution" of a standard analog TV set is about 500x375. (Minus the Hsync bars)
to give you an idea of what resolution that is, here is my desktop sized to that resolution
Here is what it looks like at full size on a TV screen.
Good luck with that