fbdev

FBDEV(4)                    Kernel Interfaces Manual                    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.

       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. Mandatory
              for 24bpp framebuffers on newer servers. 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. Disabled for 24bpp framebuffers. Default: off.

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

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



X Version 11                 xf86-video-fbdev 0.5.0                     FBDEV(4)