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.

Svgalib (>= 1.2.11)                               27 July 1997                                 vga_setchipset(3)