laptop suspend

Matthew Saltzman mjs at ces.clemson.edu
Sat Apr 23 23:49:38 UTC 2005


On Sun, 24 Apr 2005, Alexander Dalloz wrote:

> Am So, den 24.04.2005 schrieb Gaspar Bakos um 0:43:
>
>> I used to have RH9.0 on an IBM Thinkpad T40, and kernels 2.4.2*. The
>> laptop suspend was working fine (either to suspend button, or closing
>> the lid) after the installation, without any extra configuration and
>> effort.
>>
>> I recently upgraded to FC3, and have a 2.6.11 kernel. The suspend does
>> not work. I tried appending apm=on to the grub boot command line, but
>> no success?

In what sense does it "not work"?

Related to https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144415, 
perhaps?

I have ACPI suspend working on my T41, but it takes some work to get the 
graphics chip to power down properly.  See the discussion at
http://bugzilla.kernel.org/show_bug.cgi?id=3022.

>
> I think "acpi=off apm=on" would be needed to give apm control over power
> management.

Not necessary.  acpi=off is all that's needed.  apm=on probably works as 
well.  The startup scripts are arranged so that acpid stops if apmd 
starts.

>
>> 1. Is it possible that the FC provided 2.6.11 kernel is compiled with
>> APM=no flag?
>
> No, it is compiled with "CONFIG_APM=y".
>
>> 2. Where can I find the .config file that was used for compiling the
>> kernel?
>
> /boot/config-2.6.11-1.14_FC3
>
>> Gaspar
>
> Alexander
>
>
>

-- 
 		Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs




More information about the fedora-list mailing list