dumpreg(1)             Svgalib User Manual             dumpreg(1)

       dumpreg  -  dump  the  state  of  the  card as the svgalib
       chipset driver sees it.

       dumpreg < /dev/ttyN

       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.

       svgalib(7), vgagl(7),  libvga(5),  vga_dumpregs(3),
       convfont(1),         fix132x43(1),         restorefont(1),
       savetextmode(1), setmclk(1), textmode(1).

       math.uni-essen.de>. The exact  source  of  the  referenced
       utility  as  well  as  of  the  original  documentation is

       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