i thank you, sir.


Brett Glass wrote:
At 12:54 PM 11/21/2009, Dag-Erling Smørgrav wrote:

A CRT has an electrom beam that sweeps across the screen left to right
and top to bottom, and the horizontal and vertical sync frequencies
control how fast the beam moves.  An LCD panel does not have an electron
beam; it has discrete, individually adressable pixels.  If you insist on
hooking it up to an analog port, it will have to convert the analog
signal to a digital signal in order to display it, and you will get
sampling artifacts, aliasing etc.  I don't care how good you are at
writing modelines; you will never come up with one that looks better
than what you will get with a digital connection.


Unfortunately, some monitors with digital interfaces are not compatible with some LCD displays, even though the sockets and cables look like they match up. For example, I recently tried to hook an Asus "Eee Box", which has an HDMI connector, up to a Samsung LCD display using a digital cable. Couldn't get it to work at all, no matter how I adjusted the settings on both. But when I used an analog adapter and cable, it worked on the first try at maximum resolution, with (fortunately) few or no noticeable artifacts. Analog isn't ideal, but it's a good fallback.

--Brett Glass

this post has nothing to do with my request for
  the identity of manufacturers with an earned reputation for reliability.

however, it was so nice to learn that
  there exists at least one person who recognizes that
  just because it's "digital" doesn't mean it's "better".

digital = non_linear analog, while using much_more_than_shannon_requires 
band_width.

rob

_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-chat
To unsubscribe, send any mail to "[email protected]"

Reply via email to