0ea6e61122
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
32 lines
1.5 KiB
Text
32 lines
1.5 KiB
Text
APM or ACPI?
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------------
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If you have a relatively recent x86 mobile, desktop, or server system,
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odds are it supports either Advanced Power Management (APM) or
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Advanced Configuration and Power Interface (ACPI). ACPI is the newer
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of the two technologies and puts power management in the hands of the
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operating system, allowing for more intelligent power management than
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is possible with BIOS controlled APM.
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The best way to determine which, if either, your system supports is to
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build a kernel with both ACPI and APM enabled (as of 2.3.x ACPI is
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enabled by default). If a working ACPI implementation is found, the
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ACPI driver will override and disable APM, otherwise the APM driver
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will be used.
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No, sorry, you cannot have both ACPI and APM enabled and running at
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once. Some people with broken ACPI or broken APM implementations
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would like to use both to get a full set of working features, but you
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simply cannot mix and match the two. Only one power management
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interface can be in control of the machine at once. Think about it..
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User-space Daemons
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------------------
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Both APM and ACPI rely on user-space daemons, apmd and acpid
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respectively, to be completely functional. Obtain both of these
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daemons from your Linux distribution or from the Internet (see below)
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and be sure that they are started sometime in the system boot process.
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Go ahead and start both. If ACPI or APM is not available on your
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system the associated daemon will exit gracefully.
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apmd: http://ftp.debian.org/pool/main/a/apmd/
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acpid: http://acpid.sf.net/
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