Exploring CPUs, motherboards, overclocking, building your own PC, case mods, PC brands, handhelds, peripherals of all types, DVDs, CD burners, hardware-specific software, device drivers, and anything else related to hardware.
The The Restaurant at the Edge of the Universe, previously known as The Water Cooler, is a place to post stuff that has absolutely nothing at all to do with computers, broadband, Scot's Newsletter, or anything that's "supposed" to be here.
you can't use apt or apt-get if synaptic is open. synaptic runs with root privileges and "locks" the dpkg installer. close synaptic and use the terminal. It's been awhile since I set up bluetooth on mine (Lubuntu 16.04) but I can't imagine it changed much. This all looks familiar: