I have installed Ubuntu 11.10 (Oneiric) in VirtualBox as well as virtualbox-guest-additions. The display resolution adapts to the size of the window as expected, but the display turns off after 10 minutes of inactivity. Thinking there was some sort of power management issue at play, I went to Power in the settings dialog:
There doesn't really seem to be anything there that mentions "turn off display after xxx minutes" so I assume everything is configured correctly there. Next I went to Screen and found an option there "Turn off after:".
Aha! I thought. Now I have found the option – but alas: even after setting it to "never" and restarting multiple times, the display still shuts off after 10 minutes.
What am I missing? What option am I overlooking?
Best Answer
I note in the comments section that you have turned off power management.
Possibly you have run
Have you been playing with the alternative power management software
xfce4-power-manager?Running
xfce4-power-manager &via a terminal orxfce4-power-managervia startup applications, you can change when the monitor turns off - by default it is 10 minutes...i.e. running
xfce4-power-manager-settingsIf you want gnome to be the default power management run
gsettings set org.gnome.settings-daemon.plugins.power active truein a terminal.