video driver for framebuffer device
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.
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.
Please refer to
xorg.conf(5) for general configuration details. This section
only covers configuration details specific to this
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.
driver Options are supported:
The framebuffer device to use.
Enable or disable use of the
shadow framebuffer layer. Default: on.
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.
xorg.conf(5), Xserver(1), X(7), fbdevhw(4)
include: Gerd Knorr, Michel Dänzer, Geert