Acpid no longer shutsdown on lid close

Question

Previous to some recent updates acpid and the event I had would shutdown my laptop when I closed the lid. It no longer works. I have acpid running always as a daemon.
My /etc/acpi/handler.sh:
#!/bin/sh
# Default acpi script that takes an entry for all actions
minspeed=`cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq`
maxspeed=`cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq`
setspeed="/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed"
set $*
case "$1" in
button/power)
#echo "PowerButton pressed!">/dev/tty5
case "$2" in
PBTN|PWRF) logger "PowerButton pressed: $2" ;;
*) logger "ACPI action undefined: $2" ;;
esac
button/sleep)
case "$2" in
SLPB) echo -n mem >/sys/power/state ;;
*) logger "ACPI action undefined: $2" ;;
esac
My /etc/acpi/events/lid file:
event=button/lid (LID0)
action= sudo /sbin/shutdown -h now
Any ideas greatly appreciated.

Answer 1

Easiest way I found to suspend the system to memory (to make it sleep) is by using /sys/power/state (this doesn't work with all the machines).
$ cat /sys/power/state
will tell you the supported modes and what you are looking for is "mem". For example "disk" will do a hibernation but to recover you need to modify boot time kernel options.
If your system supports "mem" state, then all you need to do is
$ echo -n mem >/sys/power/state
and it should go to sleep, pressing power button or opening the lid should power it back on.
Now if that worked fine you can script it into the /etc/acpi/handler.sh:
button/lid)
case "$3" in
close)
#echo "LID closed!">/dev/tty5
echo -n mem >/sys/power/state
open)
#echo "LID opened!">/dev/tty5
esac
Note that we don't actually do anything on lid "open", since recovery is taken care by "BIOS".