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screenblank(1) [netbsd man page]

SCREENBLANK(1)						    BSD General Commands Manual 					    SCREENBLANK(1)

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/ 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 ``'', 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 ``'', 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/ File containing the pid of screenblank. BSD
September 23, 2006 BSD

Check Out this Related Man Page

WSMUX(4)						   BSD Kernel Interfaces Manual 						  WSMUX(4)

wsmux -- console keyboard/mouse multiplexor for wscons SYNOPSIS
wskbd* at ... mux 1 wsmouse* at ... mux 0 pseudo-device wsmux DESCRIPTION
The wsmux is a pseudo-device driver that allows several wscons(4) input devices to have their events multiplexed into one stream. The typical usage for this device is to have two multiplexors, one for mouse events and one for keyboard events. All wsmouse(4) devices should direct their events to the mouse mux (normally 0) and all keyboard devices, except the console, should direct their events to the key- board mux (normally 1). A device will send its events to the mux indicated by the mux locator. If none is given the device will not use a multiplexor. The keyboard multiplexor should be connected to the display, using the wsconscfg(8) command. It will then receive all key- strokes from all keyboards and, furthermore, keyboards can be dynamically attached and detached without further user interaction. In a simi- lar way, the window system will open the mouse multiplexor and receive all mouse events; mice can also be dynamically attached and detached. If a wskbd(4) or wsmouse(4) device is opened despite having a mux it will be detached from the mux. It is also possible to inject events into a multiplexor from a user program. FILES
For each mux device, /dev/wsmuxN there is a control device /dev/wsmuxctlN. The control device has a minor number 128 greater than the regu- lar mux device. It can be used to control the mux even when it is open, e.g., by wsmuxctl(8). /dev/wsmouse a.k.a. /dev/wsmux0 /dev/wskbd a.k.a. /dev/wsmux1 /usr/include/dev/wscons/wsconsio.h SEE ALSO
wscons(4), wsdisplay(4), wskbd(4), wsmouse(4), moused(8), wsconscfg(8), wsconsctl(8), wsfontload(8), wsmoused(8), wsmuxctl(8) BSD
July 26, 1999 BSD
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