Man

Command Section
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.config(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 <[email protected]
       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 <[email protected]>.

       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                        dumpreg(1)
Command Section