蓝牙无法在Ubuntu 15.04中运行
我在DELL XPS 13笔记本（型号9343，bios A03）上安装了Ubuntu 15.04。 我的内部蓝牙设备是用hci检测到的，图标在任务栏中，但是当扫描蓝牙设备时，它什么都找不到，它本身就找不到了。 我附上一些信息。 欢迎提出建议。
cribari@darwin4:~$ uname -a; lspci -nnk | grep -iA2 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth Linux darwin4 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux 02:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03) Subsystem: Dell Device [1028:0019] Kernel driver in use: wl Bus 003 Device 002: ID 8087:8001 Intel Corp. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 0c45:670c Microdia Bus 001 Device 004: ID 04f3:20d0 Elan Microelectronics Corp. Bus 001 Device 003: ID 0a5c:216f Broadcom Corp. Bus 001 Device 002: ID 046d:c530 Logitech, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub [ 2.136553] Bluetooth: Core ver 2.20 [ 2.136568] Bluetooth: HCI device and connection manager initialized [ 2.136572] Bluetooth: HCI socket layer initialized [ 2.136575] Bluetooth: L2CAP socket layer initialized [ 2.136581] Bluetooth: SCO socket layer initialized [ 2.138896] bluetooth hci0: Direct firmware load for brcm/BCM20702A0-0a5c-216f.hcd failed with error -2 [ 2.138899] Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-216f.hcd not found [ 3.407444] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 3.407448] Bluetooth: BNEP filters: protocol multicast [ 3.407452] Bluetooth: BNEP socket layer initialized [ 3.413492] Bluetooth: RFCOMM TTY layer initialized [ 3.413499] Bluetooth: RFCOMM socket layer initialized [ 3.413504] Bluetooth: RFCOMM ver 1.11 [ 2.138896] bluetooth hci0: Direct firmware load for brcm/BCM20702A0-0a5c-216f.hcd failed with error -2 bluetooth 491520 22 bnep,btusb,rfcomm cribari@darwin4:~$ 应该很容易
wget https://www.dropbox.com/s/r2pb41rhx65t9zi/BCM20702A0-0a5c-216f.hcd sudo cp BCM20702A0-0a5c-216f.hcd /lib/firmware/brcm/ sudo modprobe -r btusb sudo modprobe btusb
蓝牙应该工作
在几天内你应该可以sudo update-usbids ，你的蓝牙设备应该在lsusb被识别为蓝牙