Slackware 14 64 bit, xfce.

How would I go about disabling *ALL* power saving features? I need to ensure that the screen never blanks, and the system never tries to suspend or hibernate. I potentially access the box remotely 24/7, and it needs to be available at all times.

In Power Manager, I have On AC setting set to Never put computer to sleep. Monitor is set to never put display to sleep, and never switch off display. I have screensaver disabled. In rc.local I have:

setterm -blank off
setterm -powerdown 0

(cause it annoys me when the terminal blanks)

And yet - if I leave it for a while, the screen blanks. If I leave it long enough, it tries to go into some sort of powersave mode, the screen blanks, I can't ssh into it, and it does not respond.

What am I missing? Is there yet some setting somewhere that needs to be set?

Have you checked if there some Power Management settings in your BIOS maybe? I've noticed a number of newer, 'Green' PCs with relatively more intrusive power controls buried in a BIOS menu.

It's a Dell, an older one - but I'll check the bios and see if something there is over riding the OS settings (can it do that?).

For the monitor try putting this in the xorg.conf under the "ServerLayout" section.

So I checked the bios - this is an older dell computer and there is nothing in the bios even remotely related to power saving features.

In rc.local I have:

setterm -blank off
setterm -powerdown 0
setterm -powersave off

In xorg.conf I have:

Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"

In the Power Manager applet:

There is a checkbox for "Monitor power management control". Doesn't matter if this is checked or not.
I have "Put the computer to sleep when inactive.." set to Never.
The two sliders for Minotor sleep and off are set to Never.
Lock screen when going for suspend/hibernate is deselected (I don't hibernate or suspend).

Screen saver is disabled.

And yet after a while, it still turns the monitors off. Fortunately it doesn't try to suspend or hibernate, it just blanks the monitors. I had one person tell me that when they tried to access box, it was locked as if xflock4 had been run, but I haven't seen that for myself.

in /etc/rc.d/rc.M comment that line /bin/setterm -blank 15 -powersave powerdown -powerdown 60

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