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Setup & Installation / Re: ACPI -what is in it for me
« on: 2009.09.16, 19:55:34 »
Most likely, ACPI is perhaps installed but it is not working. A few tests, that can tell you more:
(1) Power consumption. ACPI is responsible for "sleep cycles" when your CPU has nothing reasonable to do, Does not work for you because you are hearing fans in "heavy duty" all the time.
(2) Shut down. Are you able to power off your machine by software? You command "Shut down", the machine shuts down and powers off. If you are able then ACPI is running somehow.
(3) Lid, standby, hibernate (notebooks). If you are closing NB lid, the display should get turned off near the "closed" position. This is an ACPI function. Also, ACPI is responsible for "standby" and "hibernate" states. If something of this works, ACPI is functional somehow.
(4) High IRQs (above 16 or 10h) used by your HW. If your HW manager (more reliable is sysinfo) shows high IRQs then your ACPI is running somehow and APIC is in use.
If nothing of (1) - (4) works then ACPI is not working. On a UNI machine, you can comment out the PSD= and the BASEDEV=APM.ADD statements. On SMP, you must have ACPI installed even if it is not working so that you must not comment out the statements.
(1) Power consumption. ACPI is responsible for "sleep cycles" when your CPU has nothing reasonable to do, Does not work for you because you are hearing fans in "heavy duty" all the time.
(2) Shut down. Are you able to power off your machine by software? You command "Shut down", the machine shuts down and powers off. If you are able then ACPI is running somehow.
(3) Lid, standby, hibernate (notebooks). If you are closing NB lid, the display should get turned off near the "closed" position. This is an ACPI function. Also, ACPI is responsible for "standby" and "hibernate" states. If something of this works, ACPI is functional somehow.
(4) High IRQs (above 16 or 10h) used by your HW. If your HW manager (more reliable is sysinfo) shows high IRQs then your ACPI is running somehow and APIC is in use.
If nothing of (1) - (4) works then ACPI is not working. On a UNI machine, you can comment out the PSD= and the BASEDEV=APM.ADD statements. On SMP, you must have ACPI installed even if it is not working so that you must not comment out the statements.
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