Suspending and Hibernating Your Computer

In order to save power, you can put your computer into one of a number of power-saving modes when you are not using it:

You can manually put your computer into a power-saving mode by pressing ApplicationsLog Out and then pressing the appropriate button.

[Caution]

Some computers may have problems going into certain power saving modes. The best way of checking if your computer can handle a power-saving mode is to try to switch to that mode and see if it behaves as you expected. Always make sure you save important documents before suspending or hibernating.

My Computer Does Not Suspend or Hibernate Correctly

Some computers are unable to suspend or hibernate correctly with Xubuntu. If this is the case for your computer, you may notice some of the following symptoms:

  • The computer does not turn off after you click to hibernate it.

  • When you turn the computer on after hibernating it, your previously open programs are not restored.

  • The computer will not wake up after you have suspended it.

  • Certain programs or hardware devices stop working correctly after resuming from hibernation or waking-up from being suspended.

If you suffer from any of these problems, you should report a bug to Launchpad. The problems will hopefully be fixed in a subsequent version of Xubuntu.

If your hardware does not work properly after suspending or hibernating your computer, restart your computer and it should return to normal. If a program does not work properly, try closing the program and then starting it again.

[Caution]

Make sure that you save all of your open documents before testing for suspend and hibernate problems.

Why do I get a strange pattern on the screen when I hibernate my computer?

Your screen may show a black and white pattern just after you click to hibernate your computer. This is usually nothing to worry about and is just how the graphics cards of some computers respond to the initial stages of the hibernation process.

If the computer displays the pattern for a prolonged period of time without turning itself off then you may have a problem with hibernation. See My computer does not suspend or hibernate correctly for more information.