FBDEV(4)                                                                                                                FBDEV(4)



NAME
       fbdev - video driver for framebuffer device

SYNOPSIS
       Section "Device"
         Identifier "devname"
         Driver "fbdev"
         BusID  "pci:bus:dev:func"
         ...
       EndSection

DESCRIPTION
       fbdev  is an Xorg driver for framebuffer devices.  This is a non-accelerated driver, the following framebuffer depths are
       supported: 8, 15, 16, 24.  All visual types are supported for depth 8, and TrueColor visual is supported  for  the  other
       depths.  Multi-head configurations are supported.

SUPPORTED HARDWARE
       The  fbdev  driver  supports  all hardware where a framebuffer driver is available.  fbdev uses the os-specific submodule
       fbdevhw(4) to talk to the kernel device driver.  Currently a fbdevhw module is available for linux.

CONFIGURATION DETAILS
       Please refer to xorg.conf(5) for general configuration details.  This section only covers configuration details  specific
       to this driver.

       For  this driver it is not required to specify modes in the screen section of the config file.  The fbdev driver can pick
       up the currently used video mode from the framebuffer driver and will use it if there are no video modes configured.

       For PCI boards you might have to add a BusID line to the Device section.  See above for a sample line.   You  can  use  "
       -scanpci" to figure out the correct values.

       The following driver Options are supported:

       Option "fbdev" "string"
              The framebuffer device to use. Default: /dev/fb0.

       Option "ShadowFB" "boolean"
              Enable or disable use of the shadow framebuffer layer.  Default: on.

       Option "Rotate" "string"
              Enable  rotation  of  the  display.  The supported values are "CW" (clockwise, 90 degrees), "UD" (upside down, 180
              degrees) and "CCW" (counter clockwise, 270 degrees). Implies use of the shadow framebuffer layer.   Default: off.

SEE ALSO
       Xorg(1), xorg.conf(5), Xserver(1), X(7), fbdevhw(4)

AUTHORS
       Authors include: Gerd Knorr, Michel Danzer, Geert Uytterhoeven



X Version 11                                         xf86-video-fbdev 0.4.1                                             FBDEV(4)