Comment 25 for bug 1256630

I tried the mainline kernel 3.14.1 from here - http://kernel.ubuntu.com/~kernel-ppa/mainline/, and the result is even more disappointing, the Bouetooth is not even recognized, unlike the Ubuntu 14.04 default kernel that acts just like the OP said. I have the same laptop - Lenovo ThinkPad Edge E 531, with Broadcom Corporation BCM43142 802.11b/g/n (rev 01) WiFi/Bluetooth adapter.