[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: TP 360PE
> Tim Tyhurst wrote:
> >
> > > I've upgraded the OS on my ThinkPad 360PE to Win95 now, and have
> > > everything working, including Pen Services 2.0. (Boy, I kind of like
> > > the old pen services better...kind of miss the gestures and so forth).
> >
> > I'd be interested in hearing of any success you have in running with 256
> > colour drivers and Pen Services 2.0. My experience with my 750P are
>
> Are you teasing me? Your experience with your 750P are WHAAAT? :)
Oops, sorry about that -- deleted one line too many. Anyway, what I
meant to say was, "My experiences with my 750P are virtually identical
to what you have reported."
> Well, as I said, I have everything working. I've just finished spending
> a couple MORE hours trying to find native Win95 drivers for the WD90C24
> chipset (video). This notebook has 1MB RAM, so it shouldn't have any
> problems showing 256 colors, but the native Win95 drivers only work
> correctly in 16 color mode. You have to load an external driver called
> VESA.EXE (which you can get from Western Digital and ibm.com and
> probably other places). VESA.EXE is a DOS TSR, so it's a 16-bit thunk
> and is s-l-o-w!
I haven't researched this, but I was under the impression that the VESA
TSR just provides some extensions so that the WD driver knows how to
set up the video mode. I don't think it's actually used by the driver
after initialization. In any case, I used it for a couple of years on
a 360Cs and found the 256 colour performance to be perfectly adequate.
My guess was that it's the pen extensions (in particular the inking code)
that is the problem. I presume it's optimized for the VGA 4bbp palette,
since that would be the most common. Not many Pen devices support 8 bit
colour.
> Only problem is, all of this really dates the system! I'll bet you can
> run Win98 just fine on the 360 and probably 750 if you're willing to
> give up the pen, but that's the whole point! :)
I actually tried Beta 1 on my 750P. It ran, although it was pretty slow.
(This is with 36 megs of memory, too). I think that the quoted minimum
for Win98 is going to be a 486 DX2/66, though.
tim