laptop suspend

[Charles E Taylor IV]

On Sat, 23 Apr 2005 18:43:52 -0400 (EDT)
Gaspar Bakos <gbakos at cfa.harvard.edu> wrote:

> Hi,

> 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 have a Thinkpad X22 here, and suspend and hibernate with APM seem to
work here.  (I almost never use suspend, though, because hibernate on the
whole has been more reliable and it uses less battery.)

> 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?

To get APM working, pass "acpi=off" to the kernel.  For ecxample,
here's the relevant lines from my grub.conf:

title Fedora Core (2.6.11-1.14_FC3)
        root (hd0,1)
        kernel /vmlinuz-2.6.11-1.14_FC3 ro root=LABEL=/ acpi=off
        initrd /initrd-2.6.11-1.14_FC3.img

> 1. Is it possible that the FC provided 2.6.11 kernel is compiled with
> APM=no flag?

See above.  APM is in there.

> 2. Where can I find the .config file that was used for compiling the
> kernel?

You'll probably need to install the source RPM.  See the Fedora Core
3 release notes.

-- 
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*  Charles Taylor <tomalek at mindspring.com>
*  Chemistry instructor / Mad scientist / Linux enthusiast!
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*  Web: http://home.mindspring.com/~charletiv/
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