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Sorry for the first answer, yes, sleep is for shell (Now edited). You can sleep (suspend) your system using pm-utils (installed for default on ubuntu) or systemctl. pm-suspend If you have installed systemctl, you can use direct interface for systemd systemctl suspend More info: Power Management / Reduced Power Systemd


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Some of the LEDs are hardware-only and there's no way to change their status programmatically. The ones which can be controlled can be accessed via the sysfs virtual filesystem at /sys/class/leds/. Whether a particular LED can be controlled programmatically or not depends on the particular hardware. For example, my desktop machine has a few LEDs but none ...


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For those using Ubuntu-Gnome 14.04 there is a simple yet useful Extension called Caffeine which provides a toggle icon which allows you to disable the light dimming and screen saver behaviour from the top bar with a click. The extension can be installed following this link to the Gnome-Shell Extensions website: ...


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You will find in /etc/laptop-mode/conf.d/usb-autosuspend.conf: # Enable USB autosuspend feature? # Set to 0 to disable CONTROL_USB_AUTOSUSPEND="auto" You should change it to CONTROL_USB_AUTOSUSPEND="0" This will automatically make any USB device has a value "on" in /sys/bus/usb/devices/"DEVICE ID"/power/control. This will make value of the autosuspend ...



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