Manual Suse openSUSE 12.2 (page 445 of 530) (English)

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In this connection, the mail daemon postx makes use of the variable

POSTFIX_LAPTOP. If this variable is set to yes, postx accesses the hard disk far

less frequently.

23.4 Troubleshooting

All error messages and alerts are logged in the le /var/log/messages. The fol-

lowing sections cover the most common problems.

23.4.1 ACPI Activated with Hardware

Support but Functions Do Not Work

If you experience problems with ACPI, search the output of dmesg for ACPI-specic

messages by using the command dmesg|grep -i acpi.

A BIOS update may be required to resolve the problem. Go to the home page of your

laptop manufacturer, look for an updated BIOS version, and install it. Ask the manufac-

turer to comply with the latest ACPI specication. If the errors persist after the BIOS

update, proceed as follows to replace the faulty DSDT table in your BIOS with an up-

dated DSDT:

Procedure 23.1:

Updating the DSDT Table in the BIOS

For the procedure below, make sure the following packages are installed:

kernel-source, acpica, and mkinitrd.

Download the DSDT for your system from http://acpi.sourceforge.net/

dsdt/index.php. Check if the le is decompressed and compiled as shown by

the le extension .aml (ACPI machine language). If this is the case, continue with

step 3.

If the le extension of the downloaded table is .asl (ACPI source language) instead,

compile it by executing the following command:

iasl -sa file.asl

Power Management 427

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Suse openSUSE 12.2 Manual

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