Date: Sat, 31 Aug 1996 10:12:41 +0200 (MET DST) From: sos@freebsd.org To: durham@durham (Jim Durham) Cc: sos@freebsd.org, regnauld@tetard.glou.eu.org, hackers@freebsd.org Subject: Re: Specs on a Hitachi CM2085me monitor anybody ?? Message-ID: <199608310812.KAA22247@DeepCore.dk> In-Reply-To: <Pine.BSF.3.91.960830235011.7333B-100000@w2xo.pgh.pa.us> from Jim Durham at "Aug 31, 96 00:00:15 am"
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In reply to Jim Durham who wrote:
>
> > You would get output from where syscons takes over, that is after
> > the first call to scinit. In effect it would look like what you get
> > from a dmesg. You would miss everything up to that point. You could
> > also hack the boot manager to do resonable things to you video
> > mode, then you would be in business even earlier...
> >
........
>
> How hard would it be to find the mode set in the BIOS roms themselves?
> I know there's a High and Low rom and all that (I've hacked a little
> on an old AT bios). Would it be possible to recognize the mode setting
> values in the ROM without the source? That would be a cleaner job than
> hanging another ROM in there, but no nearly as portable!
Hmm, I'm afraid there is no easy way out here. You can get a pointer
to the "standard" mode table (thats what syscons does), but setting
the card specific modes is (surprice) card specific..
If you want only to get a readable mode, not nessesarily with
a "normal" resolution (ie 70x48), then it should only be
a matter of adjusting some of the values in a std. setting.
However, if you want a certain resolution (ie 132x50), then you
need to know more about the chipset on the videocard. If its one of
those that you can get documentation for, then you can write the
code that DTRT. Taking into account how long that will take, and
setting a moderate hour price, I'm pretty sure it would be cheaper
to go out and buy a new monitor/videocard combo :)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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