If you don’t have a high need for computer security and find it annoying Ubuntu requires you to enter your login information when you wake your computer from sleep, you can make the following changes to disable the re-login requirement.

Open gconf-editor by either the run window, or typing “gconf-editor” into terminal.

In the left window pane go to apps/gnome-power-manager/lock

In the top right pane uncheck gnome_keyring_hibernate and gnome_keyring_suspend and close gconf-editor.

Now when you wake your computer from sleep, you shouldn’t have to enter your login information.