Hello, I installed xubuntu-9.04 on my rather old laptop and noticed that pm-suspend was not working. pm-hibernate was ok. It seems pm-functions only supports suspend to "mem". Perhaps this should be configurable as in acpi-support where you can select ACPI_SLEEP_MODE to be either "mem" or "standby"? Anyway, I made quick fix that works for me: --- pm-utils-1.2.5/pm/<a href="http://pm-functions.in">pm-functions.in</a> 2009-03-26 04:14:06.000000000 +0200 +++ pm-utils-1.2.5-flu/pm/<a href="http://pm-functions.in">pm-functions.in</a> 2009-05-10 23:50:42.000000000 +0300 @@ -257,6 +257,9 @@ if grep -q mem /sys/power/state; then SUSPEND_MODULE="kernel" do_suspend() { echo -n "mem" >/sys/power/state; } + elif grep -q standby /sys/power/state; then + SUSPEND_MODULE="kernel" + do_suspend() { echo -n "standby" >/sys/power/state; } elif [ -c /dev/pmu ] && pm-pmu --check; then SUSPEND_MODULE="kernel" do_suspend() { pm-pmu --suspend; } ulf