Re: can I use video=imsttfb? [was: what is the video=ofonly kernel argument]
On Wed, Oct 02, 2002 at 05:19:41PM +0200, Vinai Kopp wrote:
> On Wed, Oct 02, 2002 at 07:37:08AM -0700, Chris Tillman wrote:
> > On Wed, Oct 02, 2002 at 11:47:18AM +0200, Vinai Kopp wrote:
> > >
> > > Now, would it be possible to specify this:
> > >
> > > video=imsttfb:vmode:?,cmode:24
> > >
> > > 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!
> >
> > This is the 9600, right? According to macframebuffer.html which I
> > downloaded from somewhere, that should be and ATI Mach64 (you could
> > verify with cat /proc/pci). So then you should be using atyfb, not
> > imsttfb:
>
> Yes, this is the 9600/300 - great you remembered it :)
>
> So I guess it is a imstty, isn't it?
>
Looks like...
> > SYNTAX
> >
> > video=xxxxx:vmode:vv,cmode:cc r
> >
> > where xxxxx should be replaced with something appropriate for the frame buffer
> > of your video card or built-in video chipset, vv and cc should be replaced with
> > a vmode and cmode, respectively, that are supported by your monitor. r is
> > optional, and can be replaced with an appropriate run-level. See below for
> > examples of these values.
>
> This list is wonderfull. Thanks!
This was listed under atyfb. So it probably won't be quite the same.
> > VMODE
> >
> > vmode refers to both the screen size in pixels (horizontal x vertical) and the
> > refresh rate (in Hz).
> >
> > vmode size(pixels) refresh notes
> > ----- ------------ ------- -----
> > 1 512 x 384 60 Hz Interlaced NTSC
> > 2 512 x 384 60 Hz
> > 3 640 x 480 50 Hz Interlaced PAL
> > 4 640 x 480 60 Hz Interlaced NTSC
> > 5 640 x 480 60 Hz
> > 6 640 x 480 67 Hz
> > 7 640 x 870 75 Hz Portrait
> > 8 768 x 576 50 Hz Interlaced PAL
> > 9 800 x 600 56 Hz
> > 10 800 x 600 60 Hz
> > 11 800 x 600 72 Hz
> > 12 800 x 600 75 Hz
> > 13 832 x 624 75 Hz
> > 14 1024 x 768 60 Hz
> > 15 1024 x 768 72 Hz
> > 16 1024 x 768 75 Hz
> > 17 1024 x 768 75 Hz
> > 18 1152 x 870 75 Hz
> > 19 1280 x 960 75 Hz
> > 20 1280 x 1024 75 Hz
> >
> >
> > CMODE
> >
> > cmode refers to the bit depth and will be either 8, 16, 24, or 32 (though 24
> > and 32 might actually produce the same result). To convert bit depth into
> > number of colors simply find 2^(bit depth). So an 8-bit display will have 2^8
> > or 256 colors, while a 24-bit display will have 2^24 or 16,777,216 colors
> > (millions of colors).
> >
> > This document is: <a href="http://www.jonh.net/cgi-bin/lppcfom/fom?file=1043";>http://www.jonh.net/cgi-bin/lppcfom/fom?file=1043</a>
>
> I'll try out the parameters tonight!
>
> Thanks,
> --
> Vinai
> Registered Linux User #280755, Debian GNU/Linux http://counter.li.org/
> Secure eMail with gnupg http://www.gnupg.org/
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