Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 11-05-2007, Руководство по установке

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28.5.4 Troubleshooting
All error messages and alerts are logged in the file
/var/log/messages
. If you
cannot find the needed information, increase the verbosity of the messages of powersave
using
DEBUG
in the file
/etc/sysconfig/powersave/common
. Increase the
value of the variable to
7
or even
15
and restart the daemon. The more detailed error
messages in
/var/log/messages
should help you to find the error. The following
sections cover the most common problems with powersave.
ACPI Activated with Hardware Support but Functions
Do Not Work
If you experience problems with ACPI, use the command
dmesg|grep -i acpi
to search the output of
dmesg
for ACPI-specific messages. 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 manufacturer to comply with the
latest ACPI specification. If the errors persist after the BIOS update, proceed as follows
to replace the faulty DSDT table in your BIOS with an updated DSDT:
1 Download the DSDT for your system from
http://acpi.sourceforge
.net/dsdt/index.php
. Check if the file is decompressed and compiled as
shown by the file extension
.aml
(ACPI machine language). If this is the case,
continue with step 3.
2 If the file extension of the downloaded table is
.asl
(ACPI source language),
compile it with iasl (package
pmtools
). Enter the command
iasl -sa
file.asl
. The latest version of iasl (Intel ACPI compiler) is available at
http://developer.intel.com/technology/iapc/acpi/
downloads.htm
.
3
Copy the file
DSDT.aml
to any location (
/etc/DSDT.aml
is recommended).
Edit
/etc/sysconfig/kernel
and adapt the path to the DSDT file accord-
ingly. Start
mkinitrd
(package
mkinitrd
). Whenever you install the kernel
and use
mkinitrd
to create an
initrd
, the modified DSDT is integrated and
loaded when the system is booted.
522 Installation and Administration