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When I wake my laptop up after some time of inactivity when the screen turns off it turns back on and also the keyboard backlight is turned on on maximum. How can I keep the keyboard light off? Screen brightness is not affected.

I use Dell Inspiron 7520 and Ubuntu 15.10.

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As described here in the file /etc/dbus-1/system.d/org.freedesktop.UPower.conf I changed <allow> to <deny> and it worked.

<allow send_destination="org.freedesktop.UPower"
   send_interface="org.freedesktop.UPower.KbdBacklight"/>

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