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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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Yes, all you have to do is: first, set tlp "governer" to performance for both ac and batt in your /etc/default/tlp file and while you are there, go ahead and enable turbo boost as well then, edit /etc/default/grub and insert intel_pstate=disable after GRUB_CMDLINE_LINUX_DEFAULT= like this example GRUB_CMDLINE_LINUX_DEFAULT="intel_pstate=disable ...


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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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Do the following: org.gnome.settings-daemon.plugins.power lid-close-suspend-with-external-monitor false org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing' org.gnome.settings-daemon.plugins.power button-sleep 'nothing' org.gnome.settings-daemon.plugins.power button-suspend 'nothing' org.gnome.settings-daemon.plugins.power ...


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I achieve the similar goal by using acpi. use /usr/bin/acpi_listen to catch the acpi event you want, on my lapttop, the event that fire when switch to battery is "ac_adapter ACPI0003:00 00000080 00000000". so I create a new event : /etc/acpi/events/switch-to-battery, below is the content: event=ac_adapter ACPI0003:00 00000080 00000000 ...


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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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