drivers/video/Config.help

CONFIG_FB_SGIVW
  SGI Visual Workstation support for framebuffer graphics.

CONFIG_VIDEO_SELECT
  This enables support for text mode selection on kernel startup. If
  you want to take advantage of some high-resolution text mode your
  card's BIOS offers, but the traditional Linux utilities like
  SVGATextMode don't, you can say Y here and set the mode using the
  "vga=" option from your boot loader (lilo or loadlin) or set
  "vga=ask" which brings up a video mode menu on kernel startup. (Try
  "man bootparam" or see the documentation of your boot loader about
  how to pass options to the kernel.)

  Read the file <file:Documentation/svga.txt> for more information
  about the Video mode selection support. If unsure, say N.

CONFIG_FB
  The frame buffer device provides an abstraction for the graphics
  hardware. It represents the frame buffer of some video hardware and
  allows application software to access the graphics hardware through
  a well-defined interface, so the software doesn't need to know
  anything about the low-level (hardware register) stuff.

  Frame buffer devices work identically across the different
  architectures supported by Linux and make the implementation of
  application programs easier and more portable; at this point, an X
  server exists which uses the frame buffer device exclusively.
  On several non-X86 architectures, the frame buffer device is the
  only way to use the graphics hardware.

  The device is accessed through special device nodes, usually located
  in the /dev directory, i.e. /dev/fb*.

  You need an utility program called fbset to make full use of frame
  buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
  and the Framebuffer-HOWTO at
  <http://www.tahallah.demon.co.uk/programming/prog.html> for more
  information.

  Say Y here and to the driver for your graphics board below if you
  are compiling a kernel for a non-x86 architecture.

  If you are compiling for the x86 architecture, you can say Y if you
  want to play with it, but it is not essential. Please note that
  running graphical applications that directly touch the hardware
  (e.g. an accelerated X server) and that are not frame buffer
  device-aware may cause unexpected results. If unsure, say N.

CONFIG_FB_ACORN
  This is the frame buffer device driver for the Acorn VIDC graphics
  hardware found in Acorn RISC PCs and other ARM-based machines.  If
  unsure, say N.

CONFIG_FB_PM2
  This is the frame buffer device driver for the Permedia2 AGP frame
  buffer card from ASK, aka `Graphic Blaster Exxtreme'.  There is a
  product page at
  <http://www.ask.com.hk/product/Permedia%202/permedia2.htm>.

CONFIG_FB_PM2_FIFO_DISCONNECT
  Support the Permedia2 FIFOI disconnect feature (see CONFIG_FB_PM2).

CONFIG_FB_PM2_PCI
  Say Y to enable support for Permedia2 AGP frame buffer card from
  3Dlabs (aka `Graphic Blaster Exxtreme') on the PCI bus.

CONFIG_FB_PM2_CVPPC
  Say Y to enable support for the Amiga Phase 5 CVisionPPC BVisionPPC
  framebuffer cards.  Phase 5 is no longer with us, alas.

CONFIG_FB_AMIGA
  This is the frame buffer device driver for the builtin graphics
  chipset found in Amigas.

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called amifb.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_FB_AMIGA_OCS
  This enables support for the original Agnus and Denise video chips,
  found in the Amiga 1000 and most A500's and A2000's. If you intend
  to run Linux on any of these systems, say Y; otherwise say N.

CONFIG_FB_AMIGA_ECS
  This enables support for the Enhanced Chip Set, found in later
  A500's, later A2000's, the A600, the A3000, the A3000T and CDTV. If
  you intend to run Linux on any of these systems, say Y; otherwise
  say N.

CONFIG_FB_AMIGA_AGA
  This enables support for the Advanced Graphics Architecture (also
  known as the AGA or AA) Chip Set, found in the A1200, A4000, A4000T
  and CD32. If you intend to run Linux on any of these systems, say Y;
  otherwise say N.

CONFIG_FB_CYBER
  This enables support for the Cybervision 64 graphics card from
  Phase5. Please note that its use is not all that intuitive (i.e. if
  you have any questions, be sure to ask!). Say N unless you have a
  Cybervision 64 or plan to get one before you next recompile the
  kernel. Please note that this driver DOES NOT support the
  Cybervision 64 3D card, as they use incompatible video chips.

CONFIG_FB_CYBER2000
  This enables support for the Integraphics CyberPro 20x0 and 5000
  VGA chips used in the Rebel.com Netwinder and other machines.
  Say Y if you have a NetWinder or a graphics card containing this
  device, otherwise say N.

CONFIG_FB_VIRGE
  This enables support for the Cybervision 64/3D graphics card from
  Phase5. Please note that its use is not all that intuitive (i.e. if
  you have any questions, be sure to ask!). Say N unless you have a
  Cybervision 64/3D or plan to get one before you next recompile the
  kernel. Please note that this driver DOES NOT support the older
  Cybervision 64 card, as they use incompatible video chips.

CONFIG_FB_RETINAZ3
  This enables support for the Retina Z3 graphics card. Say N unless
  you have a Retina Z3 or plan to get one before you next recompile
  the kernel.

CONFIG_FB_CLGEN
  This enables support for Cirrus Logic GD542x/543x based boards on
  Amiga: SD64, Piccolo, Picasso II/II+, Picasso IV, or EGS Spectrum.

  If you have a PCI-based system, this enables support for these
  chips: GD-543x, GD-544x, GD-5480.

  Please read the file <file:Documentation/fb/clgenfb.txt>.

  Say N unless you have such a graphics board or plan to get one
  before you next recompile the kernel.

CONFIG_FB_ATARI
  This is the frame buffer device driver for the builtin graphics
  chipset found in Ataris.

CONFIG_FB_FM2
  This is the frame buffer device driver for the Amiga FrameMaster
  card from BSC (exhibited 1992 but not shipped as a CBM product).

CONFIG_FB_OF
  Say Y if you want support with Open Firmware for your graphics
  board.

CONFIG_FB_S3TRIO
  If you have a S3 Trio say Y. Say N for S3 Virge.

CONFIG_FB_3DFX
  This driver supports graphics boards with the 3Dfx Banshee/Voodoo3
  chips. Say Y if you have such a graphics board.

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called tdfxfb.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_FB_RIVA
  This driver supports graphics boards with the nVidia Riva/Geforce
  chips.
  Say Y if you have such a graphics board.

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called rivafb.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_FB_ATY
  This driver supports graphics boards with the ATI Mach64 chips.
  Say Y if you have such a graphics board.

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called atyfb.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_FB_ATY128
  This driver supports graphics boards with the ATI Rage128 chips.
  Say Y if you have such a graphics board and read
  <file:Documentation/fb/aty128fb.txt>.

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called aty128fb.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_FB_MAXINE
  Say Y here to directly support the on-board framebuffer in the
  Maxine (5000/20, /25, /33) version of the DECstation.  There is a
  page dedicated to Linux on DECstations at <http://decstation.unix-ag.org/>.

CONFIG_FB_PMAG_BA
  Say Y here to directly support the on-board PMAG-BA framebuffer in
  the 5000/1xx versions of the DECstation.  There is a page dedicated
  to Linux on DECstations at <http://decstation.unix-ag.org/>.

CONFIG_FB_PMAGB_B
  Say Y here to directly support the on-board PMAGB-B framebuffer in
  the 5000/1xx versions of the DECstation.  There is a page dedicated
  to Linux on DECstations at <http://decstation.unix-ag.org/>.

CONFIG_FB_NEOMAGIC
  This driver supports notebooks with NeoMagic PCI chips.
  Say Y if you have such a graphics card. 

  The driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called neofb.o. If you want to compile it as a
  module, say M here and read Documentation/modules.txt.

CONFIG_FB_CONTROL
  This driver supports a frame buffer for the graphics adapter in the
  Power Macintosh 7300 and others.

CONFIG_FB_PLATINUM
  This driver supports a frame buffer for the "platinum" graphics
  adapter in some Power Macintoshes.

CONFIG_FB_VALKYRIE
  This driver supports a frame buffer for the "valkyrie" graphics
  adapter in some Power Macintoshes.

CONFIG_FB_CT65550
  This is the frame buffer device driver for the Chips & Technologies
  65550 graphics chip in PowerBooks.

CONFIG_FB_TGA
  This is the frame buffer device driver for generic TGA graphic
  cards. Say Y if you have one of those.

CONFIG_FB_VESA
  This is the frame buffer device driver for generic VESA 2.0
  compliant graphic cards. The older VESA 1.2 cards are not supported.
  You will get a boot time penguin logo at no additional cost. Please
  read <file:Documentation/fb/vesafb.txt>. If unsure, say Y.

CONFIG_FBCON_VGA_PLANES
  This low level frame buffer console driver enable the kernel to use
  the 16-color planar modes of the old VGA cards where the bits of
  each pixel are separated into 4 planes.

  Only answer Y here if you have a (very old) VGA card that isn't VESA
  2 compatible.

CONFIG_FB_VGA16
  This is the frame buffer device driver for VGA 16 color graphic
  cards. Say Y if you have such a card.

  This code is also available as a module. If you want to compile it
  as a module ( = code which can be inserted in and removed from the
  running kernel whenever you want), say M here and read
  <file:Documentation/modules.txt>.  The module will be called
  vga16fb.o.

CONFIG_FB_STI
  STI refers to the HP "Standard Text Interface" which is a set of
  BIOS routines contained in a ROM chip in HP PA-RISC based machines.
  Enabling this option will implement the linux framebuffer device and
  an fbcon color text console using calls to the STI BIOS routines.
  The HP framebuffer device is usually planar, uses a strange memory
  layout, and changing the plane mask to create colored pixels
  requires a call to the STI routines, so do not expect /dev/fb to
  actually be useful.  However, it is the best we have as far as
  graphics on the HP chipsets due to lack of hardware level
  documentation for the various on-board HP chipsets used in these
  systems.  It is sufficient for basic text console functions,
  including fonts.

  You should probably enable this option, unless you are having
  trouble getting video when booting the kernel (make sure it isn't
  just that you are running the console on the serial port, though).
  Really old HP boxes may not have STI, and must use the PDC BIOS
  console or the IODC BIOS.

CONFIG_FBCON_FONTS
  Say Y here if you would like to use fonts other than the default
  your frame buffer console usually use.

  Note that the answer to this question won't directly affect the
  kernel: saying N will just cause the configurator to skip all
  the questions about foreign fonts.

  If unsure, say N (the default choices are safe).

CONFIG_FONT_8x16
  This is the "high resolution" font for the VGA frame buffer (the one
  provided by the VGA text console 80x25 mode.

  If unsure, say Y.

CONFIG_FBCON_FONTWIDTH8_ONLY
  Answer Y here will make the kernel provide only the 8x8 fonts (these
  are the less readable).

  If unsure, say N.

CONFIG_FONT_SUN8x16
  This is the high resolution console font for Sun machines. Say Y.

CONFIG_FONT_SUN12x22
  This is the high resolution console font for Sun machines with very
  big letters (like the letters used in the SPARC PROM). If the
  standard font is unreadable for you, say Y, otherwise say N.

CONFIG_FONT_8x8
  This is the "high resolution" font for the VGA frame buffer (the one
  provided by the text console 80x50 (and higher) modes).

  Note that this is a poor quality font. The VGA 8x16 font is quite a
  lot more readable.

  Given the resolution provided by the frame buffer device, answer N
  here is safe.

CONFIG_FONT_6x11
  Small console font with Macintosh-style high-half glyphs.  Some Mac
  framebuffer drivers don't support this one at all.

CONFIG_FONT_PEARL_8x8
  Small console font with PC-style control-character and high-half
  glyphs.

CONFIG_FONT_ACORN_8x8
  Small console font with PC-style control characters and high-half
  glyphs.

CONFIG_FB_HGA
  Say Y here if you have a Hercules mono graphics card.

  This driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want).
  The module will be called hgafb.o. If you want to compile it as
  a module, say M here and read <file:Documentation/modules.txt>.

  As this card technology is 15 years old, most people will answer N
  here.

CONFIG_FB_E1355
  Build in support for the SED1355 Epson Research Embedded RAMDAC
  LCD/CRT Controller (since redesignated as the S1D13505) as a
  framebuffer.  Product specs at
  <http://www.erd.epson.com/vdc/html/products.htm>.

CONFIG_E1355_REG_BASE
  Epson SED1355/S1D13505 LCD/CRT controller register base address.
  See the manuals at
  <http://www.erd.epson.com/vdc/html/contents/S1D13505.htm> for
  discussion.

CONFIG_E1355_FB_BASE
  Epson SED1355/S1D13505 LCD/CRT controller memory base address.  See
  the manuals at
  <http://www.erd.epson.com/vdc/html/contents/S1D13505.htm> for
  discussion.

CONFIG_FB_PVR2
  Say Y here if you have a PowerVR 2 card in your box.  If you plan to
  run linux on your Dreamcast, you will have to say Y here.
  This driver may or may not work on other PowerVR 2 cards, but is
  totally untested.  Use at your own risk.  If unsure, say N.

  This driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want).
  The module will be called pvr2fb.o.  If you want to compile it as
  a module, say M here and read <file:Documentation/modules.txt>.

  You can pass several parameters to the driver at boot time or at
  module load time.  The parameters look like "video=pvr2:XXX", where
  the meaning of XXX can be found at the end of the main source file
  (<file:drivers/video/pvr2fb.c>). Please see the file
  <file:Documentation/fb/pvr2fb.txt>.

CONFIG_FB_PVR2_DEBUG
  Say Y here if you wish for the pvr2fb driver to print out debugging
  messages. Most people will want to say N here. If unsure, you will
  also want to say N.

CONFIG_FB_MATROX
  Say Y here if you have a Matrox Millennium, Matrox Millennium II,
  Matrox Mystique, Matrox Mystique 220, Matrox Productiva G100, Matrox
  Mystique G200, Matrox Millennium G200, Matrox Marvel G200 video,
  Matrox G400 or G450 card in your box. At this time, support for the
  G100 is untested and support for G450 is highly experimental.

  This driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want).
  The module will be called matroxfb.o. If you want to compile it as
  a module, say M here and read <file:Documentation/modules.txt>.

  You can pass several parameters to the driver at boot time or at
  module load time. The parameters look like "video=matrox:XXX", and
  are described in <file:Documentation/fb/matroxfb.txt>.

CONFIG_FB_MATROX_MILLENIUM
  Say Y here if you have a Matrox Millennium or Matrox Millennium II
  video card. If you select "Advanced lowlevel driver options" below,
  you should check 4 bpp packed pixel, 8 bpp packed pixel, 16 bpp
  packed pixel, 24 bpp packed pixel and 32 bpp packed pixel. You can
  also use font widths different from 8.

CONFIG_FB_MATROX_MYSTIQUE
  Say Y here if you have a Matrox Mystique or Matrox Mystique 220
  video card. If you select "Advanced lowlevel driver options" below,
  you should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp
  packed pixel and 32 bpp packed pixel. You can also use font widths
  different from 8.

CONFIG_FB_MATROX_G100
  Say Y here if you have a Matrox G100, G200, G400 or G450 based
  video card. If you select "Advanced lowlevel driver options", you
  should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp packed
  pixel and 32 bpp packed pixel. You can also use font widths
  different from 8.

  If you need support for G400 secondary head, you must first say Y to
  "I2C support" and "I2C bit-banging support" in the character devices
  section, and then to "Matrox I2C support" and "G400 second head
  support" here in the framebuffer section.

CONFIG_FB_MATROX_I2C
  This drivers creates I2C buses which are needed for accessing the
  DDC (I2C) bus present on all Matroxes, an I2C bus which
  interconnects Matrox optional devices, like MGA-TVO on G200 and
  G400, and the secondary head DDC bus, present on G400 only.

  You can say Y or M here if you want to experiment with monitor
  detection code. You must say Y or M here if you want to use either
  second head of G400 or MGA-TVO on G200 or G400.

  If you compile it as module, it will create a module named
  i2c-matroxfb.o.

CONFIG_FB_MATROX_MAVEN
  WARNING !!! This support does not work with G450 !!!

  Say Y or M here if you want to use a secondary head (meaning two
  monitors in parallel) on G400 or MGA-TVO add-on on G200. Secondary
  head is not compatible with accelerated XFree 3.3.x SVGA servers -
  secondary head output is blanked while you are in X. With XFree
  3.9.17 preview you can use both heads if you use SVGA over fbdev or
  the fbdev driver on first head and the fbdev driver on second head.

  If you compile it as module, two modules are created,
  matroxfb_crtc2.o and matroxfb_maven.o. Matroxfb_maven is needed for
  both G200 and G400, matroxfb_crtc2 is needed only by G400. You must
  also load i2c-matroxfb to get it to run.

  The driver starts in monitor mode and you must use the matroxset
  tool (available at
  <ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to switch it to
  PAL or NTSC or to swap primary and secondary head outputs.
  Secondary head driver also always start in 640x480 resolution, you
  must use fbset to change it.

  Also do not forget that second head supports only 16 and 32 bpp
  packed pixels, so it is a good idea to compile them into the kernel
  too.  You can use only some font widths, as the driver uses generic
  painting procedures (the secondary head does not use acceleration
  engine).

CONFIG_FB_MATROX_G450
  Say Y or M here if you want to use a secondary head (meaning two
  monitors in parallel) on G450.

  If you compile it as module, two modules are created,
  matroxfb_crtc2.o and matroxfb_g450.o. Both modules are needed if you
  want two independent display devices.

  The driver starts in monitor mode and currently does not support
  output in TV modes.  You must use the matroxset tool (available
  at <ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/>) to swap
  primary and secondary head outputs.  Secondary head driver always
  start in 640x480 resolution and you must use fbset to change it.

  Also do not forget that second head supports only 16 and 32 bpp
  packed pixels, so it is a good idea to compile them into the kernel
  too. You can use only some font widths, as the driver uses generic
  painting procedures (the secondary head does not use acceleration
  engine).

CONFIG_FB_MATROX_MULTIHEAD
  Say Y here if you have more than one (supported) Matrox device in
  your computer and you want to use all of them for different monitors
  ("multihead"). If you have only one device, you should say N because
  the driver compiled with Y is larger and a bit slower, especially on
  ia32 (ix86).

  If you said M to "Matrox unified accelerated driver" and N here, you
  will still be able to use several Matrox devices simultaneously:
  insert several instances of the module matroxfb.o into the kernel
  with insmod, supplying the parameter "dev=N" where N is 0, 1, etc.
  for the different Matrox devices. This method is slightly faster but
  uses 40 KB of kernel memory per Matrox card.

  There is no need for enabling 'Matrox multihead support' if you have
  only one Matrox card in the box.

CONFIG_FB_VOODOO1
  Say Y here if you have a 3Dfx Voodoo Graphics (Voodoo1/sst1) or 
  Voodoo2 (cvg) based graphics card.

  This driver is also available as a module ( = code which can be 
  inserted and removed from the running kernel whenever you want).
  The module will be called sstfb.o. If you want to compile it as
  a module, say M here and read Documentation/modules.txt.

  WARNING: Do not use any application that uses the 3D engine
  (namely glide) while using this driver.
  Please read the file Documentation/fb/README-sstfb.txt for supported
  options and other important info  support.

CONFIG_FB_SBUS
  Say Y if you want support for SBUS or UPA based frame buffer device.

CONFIG_FB_CREATOR
  This is the frame buffer device driver for the Creator and Creator3D
  graphics boards.

CONFIG_FB_CGSIX
  This is the frame buffer device driver for the CGsix (GX, TurboGX)
  frame buffer.

CONFIG_FB_BWTWO
  This is the frame buffer device driver for the BWtwo frame buffer.

CONFIG_FB_CGTHREE
  This is the frame buffer device driver for the CGthree frame buffer.

CONFIG_FB_CGFOURTEEN
  This is the frame buffer device driver for the CGfourteen frame
  buffer on Desktop SPARCsystems with the SX graphics option.

CONFIG_FB_P9100
  This is the frame buffer device driver for the P9100 card
  supported on Sparcbook 3 machines.

CONFIG_FB_LEO
  This is the frame buffer device driver for the SBUS-based Sun ZX
  (leo) frame buffer cards.

CONFIG_FB_IGA
  This is the framebuffer device for the INTERGRAPHICS 1680 and
  successor frame buffer cards.

CONFIG_FB_TCX
  This is the frame buffer device driver for the TCX 24/8bit frame
  buffer.

CONFIG_FB_HIT
  This is the frame buffer device driver for the Hitachi HD64461 LCD
  frame buffer card.

CONFIG_FB_SIS
  This is the frame buffer device driver for the SiS 630 and 640 Super
  Socket 7 UMA cards.  Specs available at <http://www.sis.com.tw/>.

CONFIG_FB_SIS_300
  This is the frame buffer device driver for the SiS 630 and related
  Super Socket 7 UMA cards.  Specs available at
  <http://www.sis.com.tw/>.

CONFIG_FB_SIS_315
  This is the frame buffer device driver for the SiS 315 graphics
  card.  Specs available at <http://www.sis.com.tw/>.

CONFIG_FB_IMSTT
  The IMS Twin Turbo is a PCI-based frame buffer card bundled with
  many Macintosh and compatible computers.

CONFIG_FB_VIRTUAL
  This is a `virtual' frame buffer device. It operates on a chunk of
  unswappable kernel memory instead of on the memory of a graphics
  board. This means you cannot see any output sent to this frame
  buffer device, while it does consume precious memory. The main use
  of this frame buffer device is testing and debugging the frame
  buffer subsystem. Do NOT enable it for normal systems! To protect
  the innocent, it has to be enabled explicitly at boot time using the
  kernel option `video=vfb:'.

  This driver is also available as a module ( = code which can be
  inserted and removed from the running kernel whenever you want). The
  module will be called vfb.o. If you want to compile it as a module,
  say M here and read <file:Documentation/modules.txt>.

  If unsure, say N.

CONFIG_FB_ATY_CT
  Say Y here to support use of ATI's 64-bit Rage boards (or other
  boards based on the Mach64 CT, VT, GT, and LT chipsets) as a
  framebuffer device.  The ATI product support page for these boards
  is at <http://support.ati.com/products/pc/mach64/>.

CONFIG_FB_ATY_GX
  Say Y here to support use of the ATI Mach64 Graphics Expression
  board (or other boards based on the Mach64 GX chipset) as a
  framebuffer device.  The ATI product support page for these boards
  is at
  <http://support.ati.com/products/pc/mach64/graphics_xpression.html>.

CONFIG_FB_RADEON
  Choose this option if you want to use an ATI Radeon graphics card as
  a framebuffer device.  There are both PCI and AGP versions.  You
  don't need to choose this to run the Radeon in plain VGA mode.
  There is a product page at
  <http://www.ati.com/na/pages/products/pc/radeon32/index.html>.

CONFIG_FB_SA1100
  This is a framebuffer device for the SA-1100 LCD Controller.
  See <http://www.linux-fbdev.org/> for information on framebuffer
  devices.

  If you plan to use the LCD display with your SA-1100 system, say
  Y here.

CONFIG_FBCON_ADVANCED
  The frame buffer console uses character drawing routines that are
  tailored to the specific organization of pixels in the memory of
  your graphics hardware. These are called the low level frame buffer
  console drivers. Note that they are used for text console output
  only; they are NOT needed for graphical applications.

  If you say N here, the needed low level drivers are automatically
  enabled, depending on what frame buffer devices you selected above.
  This is recommended for most users.

  If you say Y here, you have more fine-grained control over which low
  level drivers are enabled. You can e.g. leave out low level drivers
  for color depths you do not intend to use for text consoles.

  Low level frame buffer console drivers can be modules ( = code which
  can be inserted and removed from the running kernel whenever you
  want). The modules will be called fbcon-*.o. If you want to compile
  (some of) them as modules, read <file:Documentation/modules.txt>.

  If unsure, say N.

CONFIG_FBCON_MFB
  This is the low level frame buffer console driver for monochrome
  (2 colors) packed pixels.

CONFIG_FBCON_CFB2
  This is the low level frame buffer console driver for 2 bits per
  pixel (4 colors) packed pixels.

CONFIG_FBCON_CFB4
  This is the low level frame buffer console driver for 4 bits per
  pixel (16 colors) packed pixels.

CONFIG_FBCON_CFB8
  This is the low level frame buffer console driver for 8 bits per
  pixel (256 colors) packed pixels.

CONFIG_FBCON_CFB16
  This is the low level frame buffer console driver for 15 or 16 bits
  per pixel (32K or 64K colors, also known as `hicolor') packed
  pixels.

CONFIG_FBCON_CFB24
  This is the low level frame buffer console driver for 24 bits per
  pixel (16M colors, also known as `truecolor') packed pixels. It is
  NOT for `sparse' 32 bits per pixel mode.

CONFIG_FBCON_CFB32
  This is the low level frame buffer console driver for 32 bits per
  pixel (16M colors, also known as `truecolor') sparse packed pixels.

CONFIG_FBCON_AFB
  This is the low level frame buffer console driver for 1 to 8
  bitplanes (2 to 256 colors) on Amiga.

CONFIG_FBCON_ILBM
  This is the low level frame buffer console driver for 1 to 8
  interleaved bitplanes (2 to 256 colors) on Amiga.

CONFIG_FBCON_IPLAN2P2
  This is the low level frame buffer console driver for 2 interleaved
  bitplanes (4 colors) on Atari.

CONFIG_FBCON_IPLAN2P4
  This is the low level frame buffer console driver for 4 interleaved
  bitplanes (16 colors) on Atari.

CONFIG_FBCON_IPLAN2P8
  This is the low level frame buffer console driver for 8 interleaved
  bitplanes (256 colors) on Atari.

CONFIG_FBCON_MAC
  This is the low level frame buffer console driver for 1/2/4/8/16/32
  bits per pixel packed pixels on Mac. It supports variable font
  widths for low resolution screens.

CONFIG_FBCON_HGA
  This is the low level frame buffer console driver for Hercules mono
  graphics cards.

CONFIG_FBCON_VGA
  This is the low level frame buffer console driver for VGA text mode;
  it is used by frame buffer device drivers that support VGA text
  mode.