sys_attrs_pwrmgr(5) [osf1 man page]
sys_attrs_pwrmgr(5) File Formats Manual sys_attrs_pwrmgr(5) NAME
sys_attrs_pwrmgr - pwrmgr subsystem attributes DESCRIPTION
This reference page lists and describes attributes for the Power Manager (pwrmgr) kernel subsystem. To change these attributes so that they take effect each time you boot the system, you create a stanza file with the attribute settings you want and then use the sysconfigdb com- mand to update the system configuration database with the information in this file. See the EXAMPLES section for more information about this process. Refer to the sys_attrs(5) reference page for an general introduction to the topic of kernel subsystem attributes. A value that enables (1) or disables (0) CPU slowdown after the CPU becomes idle. A value that enables (1) or disables (0) all power management functions (for CPU, disks, and graphics hardware). The number of min- utes to wait before powering down registered disks after they become idle. A value that enables (1) or disables (0) disk spindown after registered disks become idle. The number of minutes before entering DPMS off mode after display hardware has become idle. If you specify 0 for this attribute, DPMS off mode is disabled. A value that enables (1) or disables (0) Display Power Management Signaling (DPMS) modes for graphics display hardware. The number of minutes before entering DPMS standby mode after display hardware has become idle. If you specify 0 for this attribute, DPMS standby mode is disabled. The number of minutes before entering DPMS suspend mode after display hardware has become idle. If you specify 0 for this attribute, DPMS suspend mode is disabled. EXAMPLES
The following example shows a sample stanza file named power_mgr.stanza: pwrmgr: default_pwrmgr_state=1 cpu_slowdown=1 disk_spindown=1 disk_dwell_time=20 graphics_powerdown=1 graphics_standby_dwell=5 graphics_suspend_dwell=10 graphics_off_dwell=15 This file: Enables power management in general, plus all three of the power management options for idle hardware (CPU slowdown, disk spin- down, and DPMS modes for graphics displays) Specifies a wait of 20 minutes before spinning down a disk after it has become idle Specifies a wait of 5, 10, and 15 minutes before entering DPMS standby, suspend, and off modes, respectively, after graphics display hardware has become idle See stanza(4) for more information about stanza files. The following command updates the /etc/sysconfigtab database with the information in the stanza file: # sysconfigdb -a -f power_mgr.stanza pwrmgr See sysconfigdb(8) for more information about using this command to update the system configuration database. SEE ALSO
Commands: sysconfigdb(8) Files: stanza(4) Others: sys_attrs(5) System Administration sys_attrs_pwrmgr(5)
Check Out this Related Man Page
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 depen- dent 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 provides the quickest monitor recovery time. Note also that many monitors implement this mode identical to suspend 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 hor- izontal 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 1.0.5 DPMSSetTimeouts(3)