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dumpreg(1) [bsd man page]

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 appli- cation 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 <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 dumpreg(1)

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restoretextmode(1)                                              Svgalib User Manual                                             restoretextmode(1)

NAME
restoretextmode - save or restore the SVGA registers for textmode. SYNOPSIS
restoretextmode {-r|-w} filename DESCRIPTION
The state of the SVGA is written to or restored from filename using the vga_gettextmoderegs(3) and vga_settextmoderegs(3) functions. As of this writing this file is 385 bytes long but this might change with future versions. Please do not fiddle with the contents of the file except when you know what you do. It might even result in hardware damage. Because of that, you should think twice to make this command available to all users on your system. The purpose of this program is usually to recover from a crashed console due to an svgalib, Xfree or other program bug. First save the state of the SVGA card when on a text console. After the crash restore this state. The savetextmode(1) and textmode(1) script makes this procedure very easy. OPTIONS
-w filename write the SVGA state to the file filename. -r filename restore the SVGA state from the file filename. SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), vga_gettextmoderegs(3), vga_settextmoderegs(3), dumpreg(1), convfont(1), fix132x43(1), restore- font(1), restorepalette(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 restoretextmode(1)

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