414a35e60a
track.
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62 lines
1.5 KiB
Groff
62 lines
1.5 KiB
Groff
.\" 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 APMCONF 8
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.Os
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.Sh NAME
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.Nm apmconf
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.Nd configure APM BIOS driver
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.Sh SYNOPSIS
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.Nm apmconf
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.Op Fl e
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.Op Fl d
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.Op Fl h
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.Op Fl t
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.Sh DESCRIPTION
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.Nm Apmconf
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is used to configure the APM (Advanced Power Management) BIOS driver
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.Xr apm 4
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on laptop PCs.
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.Pp
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The following options are available.
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.Bl -tag -width indent
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.It Fl e
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Enable power management.
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.It Fl d
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Disable power management.
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.El
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.Pp
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These options enable/disable power management functions provided by
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.Xr apm 4 .
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.Bl -tag -width indent
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.It Fl h
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Enable HLT instruction in kernel context switch routine.
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.It Fl t
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Disable HLT instruction in kernel context switch routine.
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.El
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.Pp
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These options are not necessary for almost all APM implementations,
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but for some implementations whose
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.Dq Pa Idle CPU
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call executes both CPU clock slowdown and HLT instruction,
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.Fl t
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is necessary to prevent the system from reducing its peak performance.
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See
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.Xr apm 4
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for details.
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.Sh SEE ALSO
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.Xr apm 4 ,
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.Xr apm 8 ,
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.Xr zzz 8
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.Sh AUTHORS
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.An Tatsumi Hosokawa Aq hosokawa@jp.FreeBSD.org
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