In message <Pine.NEB.4.63.0511171439340.8510@angelic.cynic.net>, Curt Sampson w
rites:
>So, I finally made my choice and went out and got a Thinkpad T42.
>It seems to be working fine so far, though I've not tried X11 yet.
>
>However, I'm not at all familiar with any kind of power management, and
>I'm wondering what I should be using on this machine. Do I just start
>apmd and powerd in rc.conf, and go with the manual pages from there?
>Does anybody have any handy scripts or anything like that?
>

Use apm only.  Powerd requires ACPI, which (as far as I know) isn't 
really useful yet on laptops, since you can't do suspend/resume.

As for scripts -- a lot depends on your usage pattern.  My laptop 
constantly moves to different networks, so I restart dhclient on resume.
That means I also have to restart ntpd -- it misbehaves if interfaces 
or addresses change -- and bind.  I have to run the latter, because 
firefox and other long-running only read resolv.conf on firse use of 
the DNS.  Accordingly, I point resolv.conf at 127.0.0.1 and let DNS 
adapt.

Here are some of my scripts:


/etc/apm/suspend:
!/bin/sh

logger -p local0.info -t apm "suspending"
/etc/rc.d/ntpd stop

sync
for i in $(ifconfig -l)
do
        case $i in
                lo[0-9]*|null[0-9]*)
                        ;;
                *)
                        ifconfig $i down
                        ;;
        esac
done
sync; sync

sleep 1
-----------------
/etc/apm/resume:
#!/bin/ksh

logger -p local0.info -t apm "resuming"
cd /

case `apm -d -a` in
        0|2) sh /etc/apm/battery;;
        1) sh /etc/apm/line;;
esac

sleep 2

ed /etc/resolv.conf <<'EOF'
g/nameserver.*# dhclient/d
w
q
EOF

route -q delete default
int=""
for i in $(ifconfig -l)
do
        case "$i" in
                lo0|null*) ;;
                *)
                        int="$int $i"
                        for j in $(ifconfig $i | awk '$1 == "inet" { if ($2 == "
alias") print $3; else print $2}')
                        do
                                ifconfig $i delete $j
                        done
                        ;;
        esac
done
(
        if [ -f /var/run/dhclient.pid ] && (kill -0 `</var/run/dhclient.pid ` )2
>/dev/null
        then
                logger -p local0.info -t dhclient dhclient 
                /etc/rc.d/dhclient restart
                #logger -p local0.info -t rtsold rtsold -d "$int" 
                #rtsol -d "$int" >/dev/console 2>&1 &
        else
                logger -p local0.info -t dhclient dhclient bypassed 
        fi
) &
mixerctl -w outputs.master=255,255


		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb