Grendel,
I have posted a message to the Gentoo forums with this issue, including all the information I have been able to collect. You can access it at:
http://forums.gentoo.org/viewtopic.php?t=134849
Tanks for your time, Jose
Grendel escribiÃ:
On Tue, 10 Feb 2004, The awesome and feared Jose GonzÃlez GÃmez commented...
Hi there,
I have an Acer Aspire 1350 laptop where I have just installed Gentoo. The problem is that I don't manage to get ACPI working. I've been reading a lot of stuff in the mailing list, the forums, etc, but I don't have a clear picture of this:
1. Are APM and ACPI related? I understand I should use *only* one of
them but not both, is this correct?
APM is the first of the power management protocols. This was used in the good old days for putting the disks into standby etc.
ACPI is a more advanced protocol, where a ACPI aware OS (if the BIOS supports ACPI (only bioses within the last 2-3 years do this IIRC) can request ACPI aware devices to put themselves in a power saving state, this includes harddisks, network cards, CPU. If a device cant oblige with the request at that time then it is free to reject the ACPI request.
You can use only one method, ie APM or ACPI not both. Usually the kernel defaults to supporting ACPI, but you can force it to use APM by passing the acpi=off option at boot time.
2. Should I try to move to APM if I'm not able to get ACPI running?
The only problem is linux's ACPI implementation still isnt stable for certain chipsets, notably nforce2/AMD platform.
So if when you have ACPI enabled you get random lockups, or notie that he machine is running slow, then disable it and use APM. You can enter low power states using APM, no problem.
3. Will I have all the battery, sleep, hibernate, etc stuff in APM?
You can put the disks into low power standby, or suspend. I am not sure whether hibernating or suspend to ram is possible in APM.
4. Does anybody out there have an Acer Aspire 1350 with a working Gentoo that would share her experinces with me, please?
By the way, I'm using kernel-2.4.22-gentoo-r5, there seems to be some part of ACPI working, as I'm able to see some messages in /var/log/messages when I plug/unplug my AC cord, but I don't have any /proc/acpi/battery directory. I can post more information if needed.
When the kernel boots up do you get a boot up message like "ACPI initialise" etc...
Grendel
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