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DPMSSetTimeouts(3)                X FUNCTIONS               DPMSSetTimeouts(3)



NAME
       DPMSSetTimeouts - permits applications to set the timeout values used by the X server for DPMS timings

SYNOPSIS
       cc [ flag ... ] file ... -lXext [ library ... ]
       #include <X11/extensions/dpms.h>

       Status DPMSSetTimeouts
              (
                    Display *display,
                    CARD16 standby,
                    CARD16 suspend,
                    CARD16 off
              );

ARGUMENTS
       display
              Specifies the connection to the X server

       standby
              Specifies the new standby timeout in seconds

       suspend
              Specifies the new suspend timeout in seconds

       off    Specifies the new off timeout in seconds

DESCRIPTION
       The  DPMSSetTimeouts  function  permits applications to set the timeout values used by the X server for Display
       Power Management Signaling (DPMS) timings.

       The value standby is the amount of inactivity time, in seconds, before standby  mode  is  invoked.  The  actual
       effects of this mode are dependent on the characteristics of the monitor and frame buffer card. Standby mode is
       implemented by shutting off the horizontal sync signal, and pulsing the vertical sync signal. Standby mode pro-
       vides  the  quickest monitor recovery time.  Note also that many monitors implement this mode identical to sus-
       pend mode.  A value of zero disables the standby mode.

       The value suspend is the amount of time of inactivity, in seconds, before the second level of power savings  is
       invoked.  Suspend mode's physical and electrical characteristics are implementation defined. For DPMS compliant
       hardware, setting the suspend mode is implemented by pulsing the horizontal sync signal and  shutting  off  the
       vertical  sync  signal.   In  general,  suspend mode recovery is considered to be slower than standby mode, but
       faster than off mode. However it may vary from monitor to monitor.  As noted  above,  many  monitors  implement
       this mode identical to the standby mode.  A value of zero disables this mode.

       The value off is the amount of time of inactivity,in seconds, before the third and final level of power savings
       is invoked. Off mode's physical and electrical characteristics are implementation defined.  In  DPMS  compliant
       hardware,  it  is  implemented by shutting off both horizontal and vertical sync signals, resulting in powering
       down of the monitor.  Recovery time is implementation dependent.  Usually the recovery time is  very  close  to
       the power-up time of the monitor. A value of zero disables this mode.

       Chronologically,  standby  mode  occurs before or simultaneously with suspend mode, and suspend mode must occur
       before or simultaneously with off mode.  Therefore, non-zero mode timeout values must be greater than or  equal
       to the timeout values of earlier modes.  If inconsistent values are supplied, a BadValue error will result.

RETURN VALUES
       TRUE           The DPMSSetTimeouts function returns TRUE when the function has succeeded.

ERRORS
       BadValue       An argument is out of range.

SEE ALSO
       DPMSCapable(3), DPMSInfo(3), DPMSGetTimeouts(3)



X Version 11                     libXext 1.3.3              DPMSSetTimeouts(3)