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author | bmah <bmah@FreeBSD.org> | 2003-05-23 16:37:23 +0000 |
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committer | bmah <bmah@FreeBSD.org> | 2003-05-23 16:37:23 +0000 |
commit | 4d1e113b48f9cb9d3ffc7afc83f5272fc8afbac0 (patch) | |
tree | 70a9b0eac8414643015d8d7107483e6dfa02a43a /release | |
parent | 2a3f718d6c0e81efbae32a20388079a322533d31 (diff) | |
download | FreeBSD-src-4d1e113b48f9cb9d3ffc7afc83f5272fc8afbac0.zip FreeBSD-src-4d1e113b48f9cb9d3ffc7afc83f5272fc8afbac0.tar.gz |
Add some hopefully helpful notes about ACPI.
Approved by: re (implicitly)
Reviewed by: imp
Diffstat (limited to 'release')
-rw-r--r-- | release/doc/en_US.ISO8859-1/hardware/i386/proc-i386.sgml | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/release/doc/en_US.ISO8859-1/hardware/i386/proc-i386.sgml b/release/doc/en_US.ISO8859-1/hardware/i386/proc-i386.sgml index a7c5dac..a92fd07 100644 --- a/release/doc/en_US.ISO8859-1/hardware/i386/proc-i386.sgml +++ b/release/doc/en_US.ISO8859-1/hardware/i386/proc-i386.sgml @@ -65,4 +65,31 @@ work around hardware bugs or other oddities. When in doubt, a search of the archives of the &a.mobile; may be useful.</para> + <para>Most modern laptops (as well as many desktops) use the + Advanced Configuration and Power Management (ACPI) standard. &os; + supports ACPI via the ACPI Component Architecture reference + implementation from Intel, as described in the &man.acpi.4; manual + page. The use of ACPI causes instabilities on some machines and it + may be necessary to disable the ACPI driver, which is normally + loaded via a kernel module. This may be accomplished by adding + the following line to <filename>/boot/loader.conf</filename>:</para> + + <programlisting>hint.acpi.0.disabled="1"</programlisting> + + <para>Users debugging ACPI-related problems may find it useful to + disable portions of the ACPI functionality. The &man.acpi.4; + manual page has more information on how to do this via loader + tunables.</para> + + <para>ACPI depends on a Differentiated System Descriptor Table + (DSDT) provided by each machine's BIOS. Some machines have bad or + incomplete DSDTs, which prevents ACPI from functioning correctly. + Replacement DSDTs for some machines can be found at the <ulink + url="http://acpi.sourceforge.net/dsdt/index.php">DSDT</ulink> + section of the <ulink + url="http://acpi.sourceforge.net/">ACPI4Linux</ulink> project Web + site. &os; can use these DSDTs to override the DSDT provided by + the BIOS; see the &man.acpi.4; manual page for more + information.</para> + </sect1> |