Date: Mon, 23 Nov 2009 21:15:07 +0000 From: spellberg_robert <emailrob@emailrob.com> To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no>, fbsd_chat <freebsd-chat@freebsd.org> Subject: Re: lcd monitor manufacturer recommendation request Message-ID: <4B0AFB5B.60300@emailrob.com> References: <200911200921.nAK9LKpf063202@lurza.secnetix.de> <4B06DD70.8030308@emailrob.com> <1AE59099C6D80E41BEB64A1768AFB4EA30ED5BAF@msxmbxnsprd18.acct.upmchs.net> <4B07451E.8020907@emailrob.com> <866393vekq.fsf@ds4.des.no>
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i thank you, sir. Dag-Erling Smørgrav wrote: > spellberg_robert <emailrob@emailrob.com> writes: > >>Person, Roderick <personrp@UPMC.EDU> writes: >> >>>You could get an LCD monitor that only has the 15 pin connection, >>>then you can choose refresh rate and play with modelines. At least >>>on the Viewsonic LCD I have which is 5 years old I had to do that to >>>get it working. That is if you really want to keep doing such >>>things. >> >>it isn't that i --want-- to keep doing this; it is that i --can-- do >>so, if i desire. > > > 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. > > DES this was another clue that i needed to shift my paradigm. however, it has an un_spoken assumption regarding format. rob
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