Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
FBDEV(4)               FreeBSD 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 XFree86 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 XF86Config(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 "XFree86 -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
       XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7), fbdevhw(4)

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

XFree86                          Version 4.7.0                        FBDEV(4)

NAME | SYNOPSIS | DESCRIPTION | SUPPORTED HARDWARE | CONFIGURATION DETAILS | SEE ALSO | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=fbdev&sektion=4&manpath=XFree86+4.7.0>

home | help