fbset man page on Slackware

Man page or keyword search:  
man Server   14563 pages
apropos Keyword Search (all sections)
Output format
Slackware logo
[printable version]

fbset(8)		   Linux frame buffer utils		      fbset(8)

NAME
       fbset - show and modify frame buffer device settings

SYNOPSIS
       fbset [options] [mode]

DESCRIPTION
       This documentation is out of date!!

       fbset  is  a system utility to show or change the settings of the frame
       buffer device. The frame buffer device provides	a  simple  and	unique
       interface to access different kinds of graphic displays.

       Frame  buffer  devices are accessed via special device nodes located in
       the /dev directory. The naming scheme for these nodes is always	fb<n>,
       where n is the number of the used frame buffer device.

       fbset  uses  an	own  video  mode database located in /etc/fb.modes. An
       unlimited number of video modes can be defined in  this	database.  For
       further information see fb.modes(5).

OPTIONS
       If no option is given, fbset will display the current frame buffer set‐
       tings.

       General options:

	      --help, -h
		     display an usage information

	      --now, -n
		     change the video mode immediately.	 If  no	 frame	buffer
		     device  is	 given via -fb , then this option is activated
		     by default

	      --show, -s
		     display the video mode settings. This is  default	if  no
		     further  option  or only a frame buffer device via -fb is
		     given

	      --info, -i
		     display all available frame buffer information

	      --verbose, -v
		     display information what fbset is currently doing

	      --version, -V
		     display the version information about fbset

	      --xfree86, -x
		     display the timing information as it's needed by XFree86

       Frame buffer device nodes:

	      -fb <device>
		     device gives the frame buffer device node. If  no	device
		     via -fb is given, /dev/fb0 is used

	      Video mode database:

	      -db <file>
		     set  an  alternative video mode database file (default is
		     /etc/fb.modes), see also fb.modes(5)

       Display geometry:

	      -xres <value>
		     set visible horizontal resolution (in pixels)

	      -yres <value>
		     set visible vertical resolution (in pixels)

	      -vxres <value>
		     set virtual horizontal resolution (in pixels)

	      -vyres <value>
		     set virtual vertical resolution (in pixels)

	      -depth <value>
		     set display depth (in bits per pixel)

	      --geometry, -g ...
		     set all geometry parameters at once in the	 order	<xres>
		     <yres>  <vxres> <vyres> <depth>, e.g.  -g 640 400 640 400
		     4

	      -match
		     make the physical resolution match the virtual resolution

       Display timings:

	      -pixclock <value>
		     set the length of one pixel (in picoseconds).  Note  that
		     the  frame	 buffer	 device	 may  only  support some pixel
		     lengths

	      -left <value>
		     set left margin (in pixels)

	      -right <value>
		     set right margin (in pixels)

	      -upper <value>
		     set upper margin (in pixel lines)

	      -lower <value>
		     set lower margin (in pixel lines)

	      -hslen <value>
		     set horizontal sync length (in pixels)

	      -vslen <value>
		     set vertical sync length (in pixel lines)

	      --timings, -t ...
		     set all timing parameters at once in the order <pixclock>
		     <left>  <right> <upper> <lower> <hslen> <vslen>, e.g.  -g
		     35242 64 96 35 12 112 2

       Display flags:

	      -hsync {low|high}
		     set the horizontal sync polarity

	      -vsync {low|high}
		     set the vertical sync polarity

	      -csync {low|high}
		     set the composite sync polarity

	      -extsync {false|true}
		     enable or disable external resync. If  enabled  the  sync
		     timings  are not generated by the frame buffer device and
		     must be  provided	externally  instead.  Note  that  this
		     option may not be supported by every frame buffer device

	      -bcast {false|true}
		     enable  or	 disable broadcast modes. If enabled the frame
		     buffer generates the exact timings for several  broadcast
		     modes  (e.g.  PAL or NTSC). Note that this option may not
		     be supported by every frame buffer device

	      -laced {false|true}
		     enable or disable interlace. If enabled the display  will
		     be split in two frames, each frame contains only even and
		     odd lines respectively. These two	frames	will  be  dis‐
		     played  alternating, this way twice the lines can be dis‐
		     played and the vertical frequency for the	monitor	 stays
		     the same, but the visible vertical frequency gets halved

	      -double {false|true}
		     enable  or disable doublescan. If enabled every line will
		     be displayed twice and this way the horizontal  frequency
		     can easily be doubled, so that the same resolution can be
		     displayed on different monitors, even if  the  horizontal
		     frequency	specification  differs.	 Note that this option
		     may not be supported by every frame buffer device

       Display positioning:

	      -move {left|right|up|down}
		     move the visible part of the  display  in	the  specified
		     direction

	      -step <value>
		     set step size for display positioning (in pixels or pixel
		     lines), if -step is not given display  will  be  moved  8
		     pixels horizontally or 2 pixel lines vertically

EXAMPLE
       To set the used video mode for X insert the following in rc.local:

	      fbset -fb /dev/fb0 vga

       and make the used frame buffer device known to X:

	      export FRAMEBUFFER=/dev/fb0

FILES
       /dev/fb*
       /etc/fb.modes

SEE ALSO
       fb.modes(5), fbdev(4)

AUTHORS
       Geert Uytterhoeven <Geert.Uytterhoeven@cs.kuleuven.ac.be>

       Roman Zippel <zippel@fh-brandenburg.de>
	      man files

local				   July 1998			      fbset(8)
[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server Slackware

List of man pages available for Slackware

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net