September 23, 2006 SCREENBLANK 1

### NAME

screenblank - screen saver daemon for wscons and FBIO machines

### SYNOPSIS

screenblank [-k | -m] [-d inactivity-timeout] [-e wakeup-delay] [-f framebuffer] [-i input-device] screenblank {-b | -u}

### DESCRIPTION

screenblank disables the framebuffer if the keyboard and mouse are idle for a period of time, and re-enables the framebuffer when keyboard or mouse activity resumes.

When killed with a SIGINT, SIGHUP, or SIGTERM, screenblank will re-enable the framebuffer. The pid can be found in the file ```/var/run/screenblank.pid`.

The options are as follows:

-b
  Overriding the other options, simply try (once) to blank the framebuffer, then exit.

-d inactivity-timeout
  Wait the number of seconds specified by inactivity-timeout, expressed in the format ``xxx.xxx'', before disabling the framebuffer due to inactivity. The default is 600 seconds (10 minutes).

-e wakeup-delay
  Wait the number of seconds specified by wakeup-delay, expressed in the format ``xxx.xxx'', before re-enabling the framebuffer once activity resumes. The default is .25 seconds.

-f framebuffer
  Use the framebuffer device framebuffer instead of the default ```/dev/fb`.

-i input-device
  Add input-device to the list of devices to monitor for activity.

-k
  Do not check the keyboard for activity.

-m
  Do not check the mouse for activity.

-u
  Overriding the other options, simply try (once) to unblank the framebuffer, then exit.

Note that the -k and -m flags are mutually exclusive.

### FILES

/dev/kbd
  The keyboard device.

/dev/mouse
  The mouse device.

/dev/console
  The console device.

/dev/fb
  The default framebuffer.

/dev/wskbd
  The keyboard for wscons machines.

/dev/wsmouse
  The mouse device for wscons machines.

/dev/ttyE0
  The console device for wscons machines.

/var/run/screenblank.pid
  File containing the pid of .