ow to disable all power management in Ubuntu (for a server netbook)?

How to disable all power management in Ubuntu (for a server netbook)?

up vote        7        down vote        favorite         4

I need to disable everything related to having the netbook-server go into sleep/hibernate/shutdown.  Spinning down the disks during inactivity is fine, but it is crucial that the machine remain in a state where it maintains connectivity over wi-fi (and the internet at large), as well as keep the USB subsystem up and operational (we're running a hardware modem off of it). Context: The netbook is not phyiscally accessible (it is in Thailand, I am not). I have SSH access only It is running vanilla Ubuntu 10.04 32 Bit It is a netbook of the Asus eeePC variety Is that possible to do via the command line without causing significant/any downtime? linux ubuntu electrical-power     shareimprove this question edited Jul 6 '12 at 13:52         MDMarra        83.2k16131268     asked Oct 14 '11 at 15:00         adewinter        41114

6                         A "server netbook"? Holy silicon! Why haven't you installed the server version of Ubuntu?                �C                     the-wabbit                Oct 14 '11 at 15:44                                                                             5                         This has disaster written all over it. I have a feeling this is probably not the best solution to the underlying problem.                �C                     kce                Oct 15 '11 at 21:57                                                                             add a comment

3 Answers

active        oldest        votes

   

                       

up vote        6        down vote        accepted

You can disable those power management features at various level. Graphical User Interface level In GNOME, you should edit the following file: sudoedit  /usr/share/polkit-1/actions/org.freedesktop.upower.policy One section concerns the suspend function and the other the hibernate one. Each as a tag  that you have to set to no: <allow_active>no</allow_active> Keyboard level Now, to avoid the problem if the keyboard has some related keys for these features, you have to enter the following command: gconftool -s /apps/gnome-power-manager/buttons/hibernate -t string interactive Command line level It would still be possible to trigger a suspend or hibernation from the command line, here is how to disable it. We have to create an executable script in /etc/pm/sleep.d/ that will cancel any hibernate or suspend actions. sudoedit /etc/pm/sleep.d/000cancel-hibernate-suspend The content of this file should be: #!/bin/sh # prevents hibernation and suspend . "$PM_FUNCTIONS" case "${1}" in   suspend|hibernate)     inhibit     ;;   resume|thaw)     exit 0     ;; esac Now make that file executable: chmod 0755 /etc/pm/sleep.d/000cancel-hibernate-suspend     shareimprove this answer