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The Id line is normally at the bottom of the main comment block in the
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.\"
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Approved by: bde
120 lines
3.1 KiB
Groff
120 lines
3.1 KiB
Groff
.\" LP (Laptop Package)
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.\"
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.\" Copyright (c) 1994 by Tatsumi Hosokawa <hosokawa@jp.FreeBSD.org>
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.\"
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.\" This software may be used, modified, copied, and distributed, in
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.\" both source and binary form provided that the above copyright and
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.\" these terms are retained. Under no circumstances is the author
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.\" responsible for the proper functioning of this software, nor does
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.\" the author assume any responsibility for damages incurred with its
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.\"
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.\" $Id$
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.\"
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.\" use.
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.Dd November 1, 1994
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.Dt APM 8
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.Os
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.Sh NAME
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.Nm apm, zzz
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.Nd control the APM BIOS and display its information
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.Sh SYNOPSIS
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.Nm apm
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.Op Fl ablstzZ
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.Op Fl d Ar 1|0
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.Op Fl r Ar delta
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.Pp
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.Nm zzz
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.Sh DESCRIPTION
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.Nm Apm
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controls the Intel / Microsoft APM (Advanced Power Management) BIOS and
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displays the current status of APM on laptop PCs.
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.Nm Zzz
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suspends the system by controlling APM.
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.Pp
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The following options are available for
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.Nm apm
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(no options are available for
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.Nm zzz
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).
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If no options are specified,
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.Nm apm
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displays information and current status of APM in verbose mode.
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If multiple display options are given, the values are displayed one
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per line in the order given here.
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.Bl -tag -width indent
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.It Fl a
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Display the current AC-line status as an integer value. The values
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0 and 1 correspond to the
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.Dq off-line
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state or
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.Dq on-line
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state, respectively.
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.It Fl b
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Display an integer value reflecting the current battery status.
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The values 0, 1, 2, 3, correspond to the
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.Dq high
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status,
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.Dq low
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status,
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.Dq critical
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status,
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.Dq charging
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status respectively.
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.It Fl d
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Disable/enable suspending of the display separately from a normal suspend
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using the values
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.Ar 1
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or
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.Ar 0
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respectively. This argument seems to not work on many different
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laptops, including the Libretto 30CT and 50CT.
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.It Fl l
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Display the remaining battery percentage. If your laptop does not
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support this function, 255 is displayed.
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.It Fl r
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Enable the resume wakeup timer, if the laptop supports it. This
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doesn't actually suspend the laptop, but if the laptop is suspended,
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and it supports resume from suspend, then it will be resume after
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.Ar delta
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seconds (from when you run this command, not from when you suspend).
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.It Fl s
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Display the status of the APM support as an integer value. The values
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0 and 1 correspond to the
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.Dq disabled
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state or
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.Dq enabled
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state respectively.
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.It Fl t
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Display the estimated remaining battery lifetime in seconds. If
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it is unknown, -1 is displayed.
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.It Fl Z
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Transition the system into standby mode. This mode uses less power than
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full power mode, but more than suspend mode. Some laptops support
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resuming from this state on timer or Ring Indicator events. The
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output of apm tells what your laptop claims to support.
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.It Fl z
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Suspend the system. It is equivalent to
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.Nm zzz .
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.El
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.Sh BUGS
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Some APM implementations do not support parameters needed by
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.Nm apm .
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On such systems,
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.Nm apm
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displays them as unknown.
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.Pp
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Some APM implementations cannot handle events such as pushing the
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power button or closing the cover. On such implementations, the system
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.Ar must
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be suspended
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.Ar only
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by using
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.Nm apm
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or
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.Nm zzz .
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.Sh SEE ALSO
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.Xr apm 4 ,
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.Xr apmconf 8
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.Sh AUTHORS
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.An Tatsumi Hosokawa Aq hosokawa@jp.FreeBSD.org
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