-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 James Richard Tyrer wrote: > Hamish Marson wrote: >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >> >> James Richard Tyrer wrote: >>> Jon Smirl wrote: >>>> On Sat, 26 Aug 2006 20:43:57 +0100, Dieter wrote: >>>>> Why does DDC need to work if the monitor is powered off? >>>> So that if you turn the computer on before the monitor the >>>> video card will be outputing the right mode when you turn the >>>> monitor on. >>>> >>>> I always suggest working on modesetting code with an LCD >>>> panel so that you don't destroy your CRT monitor. I don't >>>> believe it is possible to destroy the LCD panels. >>> Probably only get an LCD very confused. You don't want to turn >>> on a CRT till you have the correct frequencies set. >>> >> I have an ultra-cheap (Goodmans) LCD panel, 15" 1024x768 monitor. >> It displays (With a suitable popup for about a second) everything >> thrown at it via the analog 'VGA' output of my video card. >> Including 1680x1050 output mirrored from my main DVI connected >> monitor (When X runs in clone mode). >> >> So yeah, I'd say based on that demonstration that it'd be kinda >> hard to break an LCD monitor by giving it 'bad' signals... >> (Although I've never broken a CRT feeding it bad signals either. >> The best I ever got was having it refuse to display a picture). > > New ones are smart enough to just shut down if the PLLs don't lock > on the sync signals. However old monitors (specifically the one > that comes with the original IBM PC) will self destruct if given > the wrong sync frequencies. >
Which extends the argument that replacing old monitors like that is probably cheaper (A quick check on pricerunner reveals that there's a whole range of monitors for #40.00 odd sterling) than anything that could be implemented on the card itself... Hamish. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFE9H+8/3QXwQQkZYwRAvMqAKDKykLeHSbPhfN1NPLCo0mEFqtAJgCfYn+U 0VhG/ydWrPvKVTngsVn7mcU= =yDDT -----END PGP SIGNATURE----- _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
