Computer Science
dumpreg(1) Svgalib User Manual dumpreg(1)
NAME
dumpreg - dump the state of the card as the svgalib
chipset driver sees it.
SYNOPSIS
dumpreg
dumpreg < /dev/ttyN
DESCRIPTION
The chipset drivers of svgalib inquire the mode of the
graphic card when the application is started and restore
it when the svgalib application quits. dumpreg prints
this information to stdout.
This is useful for debugging or adding modes to a device
driver. For example you can use Xfree86 to setup a given
mode timing, then run dumpreg and use it's stdout to make
your chipset driver use exactly this timing.
However, the recent change of svgalib to hunt an own free
virtual console does not allow this, because it will make
Xfree86 return to textmode first. You can avoid this by
using the second form where N is the number of the virtual
console on which Xfree86 runs (usually 7) as root.
SEE ALSO
svgalib(7), vgagl(7), libvga(5), vga_dumpregs(3),
convfont(1), fix132x43(1), restorefont(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-essen.de>. The exact source of the referenced
utility as well as of the original 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 original author and will happily accept any
additions or corrections to this first version of the
svgalib manual.
Svgalib (>= 1.2.11) 2 Aug 1997 1
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