My Logitech M557 bluetooth mouse does not pair with Ubuntu 16.04 LTS.
I opened the Bluetooth settings window of Ubuntu, which indicates that Bluetooth is "On". I selected the "+" button to start the Device Search for all device types. I turned on the power switch of the M557 mouse and then pressed the "pair" button, which starts its blue pairing light to blink. The M557 is not found by the search.
I changed the device type to "Input devices" in the Device Search window, but the result is no better.
Also, I attempted to pair a JBL speaker, and that did not work. Bose headphones do not pair either. I also changed the "Visibility" switch for the computer in the Bluetooth settings window, which did not help.
The computer is a Dell Inspiron 15.
Any help would be greatly appreciated.
===== as requested additional information ====
06:00.0 Network controller : Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01) Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016] Kernel driver in use: wl Kernel modules: bcma, wl Bus 001 Device 006: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 005: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0 Bus 001 Device 004: ID 0bda:5756 Realtek Semiconductor Corp. Bus 001 Device 003: ID 045e:0084 Microsoft Corp. Basic Optical Mouse Bus 001 Device 002: ID 8087:8001 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub