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can I use video=imsttfb? [was: what is the video=ofonly kernel argument]

On Tue, Oct 01, 2002 at 10:51:39PM -0500, Michael Heironimus wrote:
> On Tue, Oct 01, 2002 at 11:52:46PM +0200, Vinai Kopp wrote:
> > I finally got the console to work using the "video=ofonly" kernel
> > arguments.
> > But what do they mean? I tried to figure it out looking at the fb/*
> > sources, but they are a bit beyond my humble capabilities. Can it be
> > explained to someone as ignorant as me?
> I'm not a real expert either, but my understanding is that the ofonly
> driver accesses the video in a generic Open Firmware manner, which gives
> you no acceleration or other features but will work on pretty much any
> OF Mac. Since it doesn't use any hardware-specific driver, you can use
> it when your internal video is unsupported or when the drivers (or
> hardware) is buggy, but you sacrifice any hardware-dependent features at
> the same time. You also can't change resolutions on the fly, you're
> limited to whatever OF thinks your video is set to (usually whatever it
> was in the last time you booted to Mac OS).

Thanks for the awnser. That is about what I guessed it would be. :)

Now, would it be possible to specify this:


And what vmode would/could I specify?
I am guessing this on what I read in the bootpromt howto and in
imsttfb.c, but I could likely be dreadfully wrong. Any pointers in the
right directions are very appreciated!

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