Provided by: sleepd_1.2.16_i386 bug


       sleepd - puts a laptop to sleep during inactivity


       sleepd [-s command] [-u n] [-U n] [-i n [-i n ..]] [-a] [-n] [-c n] [-b
       n] [-A]


       sleepd is a daemon to force laptops  to  enter  apm  sleep  after  some
       period   of  inactivity.  This  is  useful  if  your  laptop  does  not
       automatically go to sleep when you aren’t using it, and, like  me,  you
       often  forget to shut it off. It is also capable of suspending a laptop
       when its battery gets very low.

       sleepd monitors interrupts to detect when your laptop  is  in  use.  It
       defaults  to automatically figuring out what interupts are used by your
       keyboard and  mouse,  by  looking  for  lines  containing  things  like
       "keyboard"  and  "mouse"  in  /proc/interrupts. This may not detect all
       keyboards and mice, so other  interrupts  can  be  specified.  After  a
       configurable  amount  of  time with no activity on these interrupts, it
       asks apm(1) or some user-defined program to put the laptop to sleep.


       -h, --help
              Show summary of options.

       -n, --nodaemon
              Don’t fork to background; run in forground.

       -u, --unused
              Number of seconds the laptop can remain idle before being put to
              sleep.  Defaults to 600 secods (10 minutes). Set to 0 to disable
              any sleeping due to idleness.

       -U, --ac-unused
              If set, controls the number of seconds  the  laptop  can  remain
              idle  before being put to sleep when running on AC power. If not
              set, no distinction made between being on AC power or  not.  Set
              to 0 to disable any sleeping while the laptop is on AC power.

       -i, --irq
              Adds  an  irq  to  the  list  that is watched. Using this switch
              disables automatic detection of keyboard and mouse  irqs  unless
              -a is specified as well.

       -a, --auto
              Automatically  detect and watch mouse and keyboard irqs. This is
              the default, but specifying irqs manually with -i  disables  the
              autoprobe. This turns it back on.

       -s, --sleep-command
              Command to run to put the laptop to sleep. Defaults to "apm -s".
              If your laptop uses ACPI, you may need to get  software  suspend
              working in your kernel, and write a command to use that.

       -b, --battery
              If  this  option is specified, the daemon will put the laptop to
              sleep if the  percentage  of  battery  charge  drops  below  the
              specified  number and the system is off AC power. This is useful
              for some laptops which don’t handle this themselves. It supports
              both APM and ACPI for querying battery status.

       -A, --and
              Only  go  to  sleep  if  all  specified  conditions are met. For
              example, only sleep if idle and if the battery is low.

       -c, --check-period
              Number of seconds between check on system status. Defaults to 10
              seconds, which should be fine generally.




       It  cannot  always  detect  keyboard  and  mouse,  especially  with 2.5
       kernels.  If the keyboard or mouse interrupt is shared  (as  is  common
       with  usb  devices),  other  devices on the same interrupt can keep the
       system awake.


       Joey Hess <>