NAME

       vga_setchipset - force chipset

SYNOPSIS

       #include <vga.h>

       void vga_setchipset(int chipset);

DESCRIPTION

       Force  detection  of a chipset (when chipset detection fails).  vga_setchipset(VGA) can be
       useful if the chipset specific stuff or the SVGA detection stuff gives problems.

       However, at first the automatic detection should work well, and if not a specific  chipset
       can be forced from /etc/vga/libvga.config.

       Because  of  that,  void  vga_setchipset(int  chipset)  should  probably  never be used by
       applications. If used nevertheless, it should be called directly before vga_init(3).

       As of now the following values are defined for chipset:

       UNDEFINED
              This is the default and specifies autodetection.

       VGA    A plain VGA card, not that the SVGA must behave like an  ordinary  SVGA  card  then
              which will probably mean it is in an ordinary (25x80) textmode.

       ET4000 Tseng ET4000/ET4000W32(i/p) cards.

       CIRRUS Cirrus Logic GD542x/3x cards.

       TVGA8900
              Trident TVGA 8900C/9000 (and possibly also 8800CS/8900A/B) cards.

       OAK    Oak Technologies OTI-037/67/77/87 cards.

       EGA    An ordinary EGA card. The notes about VGA apply.

       S3     An S3 base card.

       ET3000 Tseng ET3000 cards.

       MACH32 A card (from ATI or not) based on the ATI Mach32 chipset.

       GVGA6400
              A Genoa(?) GVGA6400 card.

       ARK    ARK Logic ARK1000PV/2000PV cards.

       ATI    An  ATI SVGA (VGA Wonder and friends) card. This does not (necessarily) include the
              newer cards (usually called Mach something).

       ALI    An ALI2301 based card.

       MACH64 A card using the ATI Mach64 chipset. Support is not complete.

       CHIPS  Chips and Technologies chipsets  65525,  65535,  65546,  65548,  65550,  and  65554
              (usually in laptops).

SEE ALSO

       svgalib(7),     vgagl(7),    libvga.config(5),    vgatest(6),    vga_getcurrentchipset(3),
       vga_setchipsetandfeatures(3)

AUTHOR

       This manual page was edited by Michael Weller  <eowmob@exp-math.uni-essen.de>.  The  exact
       source of the referenced function 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.