On Tue, 10 Feb 2004, The awesome and feared Jose González Gómez 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

-- 
Hi, I'm a signature virus. plz set me as your signature and help me spread
:)

--
[EMAIL PROTECTED] mailing list

Reply via email to