Re: [ACPI-sppt] No sleep on Fujistsu E7110 w/ 2.4.22 kernel and 20031002 ACPI patch

On Sat, Nov 01, 2003 at 12:47:41PM -0500, Ilya Bagrak wrote:
> I just compiled and installed stock 2.4.22 kernel with 20031002 acpi patch
> applied.  Everything goes fine through the boot process (the modules get
> loaded, proc files are there, etc.)
> 
> ACPI on my laptop reports S0 S3 S4 and S5 as supported states.  However,
> when I echo 3 > /proc/sleep/acpi, absolutely nothing happens.

linux 2.4 do not support S2, S3 and S4, then echo n with n in
{2, 3, 4} is a nogo.

The only stuff supported is S1 and S4bios, but for S4bios, there are
some trouble, though.

> There are
> no messages in the log, and no other activity seems to take place. In
> fact, the only thing that has any effect is echo 5 > /proc/sleep/acpi,
> which shuts down the laptop (as expected). Any clues on this? I enabled
> ACPI_SLEEP in my config. Is there something else I need to tweak?

You 'just' have to design and implement a whole, cleaner, safer driver model
for 2.4, and also probably rewrote most of drivers in order to be sure
correct power management for your device is OK...  And do not say me
that swsusp does that, it don't, but rely on the initialisation of the
kernel before resume stage, which can not be done for S[23].

For a stable serie kernel, this will likely never be done.  You have
to switch to the beta series (2.6-test) for S[23] (also try 2.6 mm series,
not vanilla where there are trouble).

Cheers,

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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