Re: Old monitor, new video card. Compatible?


"David Maynard" <nospam@xxxxxxxxxxx> wrote in message
news:11sqhhlnc44qi9c@xxxxxxxxxxxxxxxxxxxxx
> JAD wrote:
>
> > "David Maynard" <nospam@xxxxxxxxxxx> wrote in message
> > news:11sqel8c5sv2fdb@xxxxxxxxxxxxxxxxxxxxx
> >
> >>JAD wrote:
> >>
> >>>"BigJim" <woody10277@xxxxxxxxxxx> wrote in message
> >>>news:1-ydnX7MILGurlDeRVn-rg@xxxxxxxxxxxxxx
> >>>
> >>>
> >>>>yea well tell that to the 15 inch I have in the garage it will not
fire
> >
> > up
> >
> >>>>on xp.
> >>>>and yea it is vga works with 98.
> >>>
> >>>
> >>>VGA 640x480 only obviously (and/or 256 color depth only). had a 15"
> >
> > packard
> >
> >>>bell monitor like that.
> >
> >
> >>There's no color depth restriction on a VGA monitor, they're analog.
> >
> >
> > Maybe not directly. however trying to get this particular monitor to
work
> > and not go extremely 'dark' or horizontal roll, you had to have 640 x
480 at
> > 256 or the image would be dark. Now this also could be the fact that the
> > particular adapter I was using at the time had a max of 24bit and no 16
bit
> > (I think this was an older SIS card), and I have found that 24bit depth
> > caused some problems on picky configurations.
>
>
> Then either the monitor was defective or the video card didn't put out a
> proper video signal because there's nothing about having 24 bit resolution
> between the max and min signal level vs only 256 steps between max and min
> signal level that would affect a properly operating monitor because the
> signal is still between max and min (so it can't affect sync).
>
> The monitor is absolutely clueless about it. The signal just goes from
>
> here --->
> to
> <--- here
>
> and whether it's subdivided into 256 or 24 million levels is irrelevant.
>
> (actually, 24 bit resolution is 256 levels on each of the three: red,
> green, blue, 8x3=24, but the point remains)
>
> Some older cards didn't keep proper frequency at higher color depth (video
> memory timing issue) and you mentioning SIS makes me wonder, and as the
> filaments slowly warm up in the really old vacuum tube memory archive
> section of my mind I seem to remember SIS controllers (on-board shared
> memory ones I think) that would switch to 55Hz, or even 50Hz, at the
larger
> color depths.

this could be true for this card, as I could never look at the refresh rate
in 24bit mode, it was way to dark to see.
This particular monitor was from my first(and last) store bought PC. Packard
Bell 75mhz 70CD Win3.1 and Packard's Navigator with the future Win95
upgrade. Man that was something. . Modem and soundcard were on a huge PCI
combo board. Everything was On a proprietary riser card. cirrus video OB.
Something tells me that this monitor was chosen to fit the video output of
this system. (I think it was technically a 14")

But that's the card's fault (or the driver) and not the
> monitor, per see. One can quibble that the older, non-multisync, monitors
> can't sync on off frequency signals but that's blaming the monitor for not
> tolerating the card's problem.
>
> To be fair I'm trying to think of some way it could matter to the monitor
> but I can't come up with one, off hand. Not that, after the "music falls
to
> the rear of the car or to the front depending on acceleration or braking"
> incident I'll say it's impossible ;)
>
> (Got vacuum tubes on my mind again because I just completed the input
> stages on the amp and they work! With no intervening fire or smoke either)
>
>


.

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