Date: Tue, 04 Aug 1998 23:12:12 +0100 From: Brian Somers <brian@Awfulhak.org> To: Greg Lehey <grog@lemis.com> Cc: Brian Somers <brian@Awfulhak.org>, Randy Philipp <cphilipp@pop500.gsfc.nasa.gov>, Doug White <dwhite@resnet.uoregon.edu>, freebsd-mobile@FreeBSD.ORG Subject: Re: Neomagic chipset - is it a hardware problem ? Message-ID: <199808042212.XAA24500@awfulhak.org> In-Reply-To: Your message of "Tue, 04 Aug 1998 16:51:01 %2B0930." <19980804165101.Y25942@freebie.lemis.com>
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[.....]
> > Has anyone else seen this problem ? I'm pretty much convinced that
> > it's a hardware problem now, so I'll probably return the machine
> > (second time) nearer the end of the week.
>
> I don't know too much about laptop displays, but if that were to
> happen on a glass monitor, I'd guess you're driving it out of spec. I
> know you can fry monitors; maybe you can fry laptop displays. In your
> position I'd seriously consider reviewing the display parameters.
The display (frequency) parameters seem to be pretty much redundant
for LCDs. I can make up any clock line, and pair it up with a
modeline that says
"800x600" anything 800 anything 600 anything
and it'll behave exactly the same. This makes sense as there's no
``beam'' to give orders to on an LCD..... you just have to switch
modes and colour the pixels - the rest is beyond software control.
> Greg
> --
> See complete headers for address and phone numbers
> finger grog@lemis.com for PGP public key
--
Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org>
<http://www.Awfulhak.org>;
Don't _EVER_ lose your sense of humour....
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