How do I stop my GNOME desktop from locking the screen after a few minutes of idle time?
I already tried the official manual at Red Hat and tried to use gconf-editor and gconftool-2 to set /apps/panel/global/disable_log_out and
/apps/panel/global/disable_lock_screen. No luck.
The screen saver can also lock the screen. Uncheck either 'Activate screensaver when computer is idle' or 'Lock screen when screensaver is active' or both in screensaver preferences. From commandline use gnome-screensaver-preferences or goto 'System->Preferences->Screensaver'.
I think the corresponding keys (for use with gconftool-2) are /apps/gnome-screensaver/idle_activation_enabled and /apps/gnome-screensaver/lock_enabled.
HTH