Felisp
84436a5ae0
http://my.svgalib.org/svgalib/svgalib-1.9.25.tar.gz http://my.svgalib.org/svgalib/
91 lines
2.9 KiB
Groff
91 lines
2.9 KiB
Groff
.TH fix132x43 1 "2 Aug 1997" "Svgalib (>= 1.2.11)" "Svgalib User Manual"
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.SH NAME
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fix132x43 \- fix problems with certain (132 column) graphics modes
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dump the state of the card as the svgalib chipset driver sees it.
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.SH SYNOPSIS
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.BI fix132x43 " options"
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.SH DESCRIPTION
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This program tries to fix problems with extended textmodes on some cards. The problem is that for
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132x43 textmode, some BIOS's set the vertical display end register to 349 (350), instead of 343
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(344 = 3 * 8 scanlines). Because in Linux textmode video memory is usually filled with old text
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that has already scrolled away (this includes the area below the 43rd textmode line, which changes
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when the console scrolls), the top half of a constantly changing irrelevant text line is visible
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at the bottom of the screen, which is very annoying.
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This program sets the VGA Vertical Display End register to the proper value.
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This problem is at least present in the BIOS of most Cirrus Logic 542x based cards, and
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some WD90C03x based cards.
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The
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.B LINES
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environment variable is used to detect 43 or 44 line consoles.
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.SH OPTIONS
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You have to specify exactly one of the following options:
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.TP
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.B -f
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Fix problem of annoying changing line of text at bottom of screen.
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.TP
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.B -v
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Switch to 9 line characters (400 line frame, 70 Hz).
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.TP
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.B -w
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Switch to 11 line characters (480 line frame, 60 Hz).
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.B fix132x43
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does not usually provide this option but it can be enabled in the source of
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.BR fix132x43.
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.TP
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.B -r
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Switch to 8 line characters again (350 line frame, 70 Hz).
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.PP
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This utility is part of svgalib and can be found in the
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.I utils/
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subdirectory of the original svgalib distribution. However, it is not installed
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by default, s.t. it is unclear where you can find it if your svgalib was install
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linux distribution.
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In case of any such problem, simply get an svgalib distribution from the net. You
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don't need to install it. Just
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.B make
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in the
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.I utils/
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subdirecty. As of this writing,
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.I svgalib-1.2.12.tar.gz
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is the latest version and can be retrieved by ftp from
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.IR "sunsite.unc.edu" " at " "/pub/Linux/libs/graphics"
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and
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.IR "tsx-11.mit.edu" " at " "/pub/linux/sources/libs"
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which will most probably be mirrored by a site close to you.
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.SH SEE ALSO
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.BR svgalib (7),
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.BR vgagl (7),
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.BR libvga.config (5),
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.BR convfont (1),
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.BR dumpreg (1),
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.BR restorefont (1),
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.BR restorepalette (1),
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.BR restoretextmode (1),
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.BR runx (1),
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.BR savetextmode (1),
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.BR setmclk (1),
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.BR textmode (1).
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.SH AUTHOR
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This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The
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exact source of the referenced utility as well as of the original documentation is
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unknown.
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It is very likely that both are at least to some extent are due to
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Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
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Occasionally this might be wrong. I hereby
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asked to be excused by the original author and will happily accept any additions or corrections
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to this first version of the svgalib manual.
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