In both FC9 and FC10, I've had problems with power management on my desktop machine.

I've got the gnome-power-manager settings set to suspend the monitor at 20 minutes and spin down the drives (suspend) after 30 minutes of no activity.

Apparently it reports an error trying to suspend, so instead, it defaults to hibernate mode. This is an active server that is remotely accessed. I cannot afford to have it hibernate. But it does go long periods (sometimes as long as 10-12 hours) with little or no activity, so I want to suspend to save power.

I know my desktop *can* suspend....it functions correctly under Ubuntu, just not under Fedora 9 or 10. I think it is a problem with hal, or with a config file for hal.

If I issue "lshal |grep suspend", I get:

power_management.can_suspend = false (bool)
power_management.can_suspend_hybrid = false (bool)
power_management.can_suspend_to_disk = true (bool)
power_management.can_suspend_to_ram = false (bool)
power_management.quirk.dpms_suspend = true (bool)

For some reason it thinks I can't suspend, but it does power down the monitor and can hibernate.

Anyone know how (or even if) I can set power_management.can_suspend value to true? Any other ideas?