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fix132x43(1)		       Svgalib User Manual		    fix132x43(1)

NAME
     fix132x43	- fix problems with certain (132 column) graphics modes dump the
     state of the card as the svgalib chipset driver sees it.

SYNOPSIS
     fix132x43 options

DESCRIPTION
     This program tries to fix problems with extended textmodes on  some  cards.
     The  problem is that for 132x43 textmode, some BIOS's set the vertical dis-
     play end register to 349 (350), instead of 343 (344 = 3 * 8 scanlines). Be-
     cause in Linux textmode video memory is usually filled with old  text  that
     has  already  scrolled away (this includes the area below the 43rd textmode
     line, which changes when the console scrolls), the top half of a constantly
     changing irrelevant text line is visible at the bottom of the screen, which
     is very annoying.

     This program sets the VGA Vertical  Display  End  register  to  the  proper
     value.

     This  problem  is	at  least  present in the BIOS of most Cirrus Logic 542x
     based cards, and some WD90C03x based cards.

     The LINES environment variable is used to detect 43 or 44 line consoles.

OPTIONS
     You have to specify exactly one of the following options:

     -f     Fix problem of annoying changing line of text at bottom of screen.

     -v     Switch to 9 line characters (400 line frame, 70 Hz).

     -w     Switch to 11 line characters (480 line frame, 60 Hz).

	    fix132x43 does not usually provide this option but it can be enabled
	    in the source of fix132x43.

     -r     Switch to 8 line characters again (350 line frame, 70 Hz).

     This utility is part of svgalib and can be found in the utils/ subdirectory
     of the original svgalib distribution. However, it is not installed  by  de-
     fault, s.t. it is unclear where you can find it if your svgalib was install
     linux distribution.

     In  case  of  any such problem, simply get an svgalib distribution from the
     net. You don't need to install it. Just make in the utils/  subdirecty.  As
     of this writing, svgalib-1.2.12.tar.gz is the latest version and can be re-
     trieved   by  ftp	from  sunsite.unc.edu  at  /pub/Linux/libs/graphics  and
     tsx-11.mit.edu at /pub/linux/sources/libs which will most probably be  mir-
     rored by a site close to you.

SEE ALSO
     svgalib(7),  vgagl(7),  libvga.config(5), convfont(1), dumpreg(1), restore-
     font(1), restorepalette(1), restoretextmode(1),  runx(1),	savetextmode(1),
     setmclk(1), textmode(1).

AUTHOR
     This  manual  page  was  edited  by Michael Weller <eowmob@exp-math.uni-es-
     sen.de>. The exact source of the referenced utility as well as of the orig-
     inal documentation is unknown.

     It is very likely that both are at least to some extent  are  due	to  Harm
     Hanemaayer <H.Hanemaayer@inter.nl.net>.

     Occasionally this might be wrong. I hereby asked to be excused by the orig-
     inal  author  and	will happily accept any additions or corrections to this
     first version of the svgalib manual.

Svgalib (>= 1.2.11)		   2 Aug 1997			    fix132x43(1)

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<https://man.freebsd.org/cgi/man.cgi?query=fix132x43&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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