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acpi.4 (161159) acpi.4 (162404)
1.\"
2.\" Copyright (c) 2001 Michael Smith
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright

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18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
1.\"
2.\" Copyright (c) 2001 Michael Smith
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24.\" SUCH DAMAGE.
25.\"
26.\" $FreeBSD: head/share/man/man4/acpi.4 161159 2006-08-10 06:32:16Z njl $
26.\" $FreeBSD: head/share/man/man4/acpi.4 162404 2006-09-18 15:24:20Z ru $
27.\"
28.Dd July 29, 2006
29.Dt ACPI 4
30.Os
31.Sh NAME
32.Nm acpi
33.Nd Advanced Configuration and Power Management support
34.Sh SYNOPSIS

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581.Pp
582This manual page was written by
583.An Michael Smith Aq msmith@FreeBSD.org .
584.Sh BUGS
585Many BIOS versions have serious bugs that may cause system instability,
586break suspend/resume, or prevent devices from operating properly due to
587IRQ routing problems.
588Upgrade your BIOS to the latest version available from the vendor before
27.\"
28.Dd July 29, 2006
29.Dt ACPI 4
30.Os
31.Sh NAME
32.Nm acpi
33.Nd Advanced Configuration and Power Management support
34.Sh SYNOPSIS

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581.Pp
582This manual page was written by
583.An Michael Smith Aq msmith@FreeBSD.org .
584.Sh BUGS
585Many BIOS versions have serious bugs that may cause system instability,
586break suspend/resume, or prevent devices from operating properly due to
587IRQ routing problems.
588Upgrade your BIOS to the latest version available from the vendor before
589deciding it's a problem with
589deciding it is a problem with
590.Nm .
591.Pp
592The
593.Nm
594CPU idle power management drive conflicts with the local APIC (LAPIC)
595timer.
596Disable APIC mode with
597.Va hint.apic.0.disabled
590.Nm .
591.Pp
592The
593.Nm
594CPU idle power management drive conflicts with the local APIC (LAPIC)
595timer.
596Disable APIC mode with
597.Va hint.apic.0.disabled
598or don't use the
598or do not use the
599.Li C2
600and
601.Li C3
602states if APIC mode is enabled.
599.Li C2
600and
601.Li C3
602states if APIC mode is enabled.