蓝牙无法在 ubuntu 18.04 上找到设备

Question

我无法找到并连接蓝牙设备。

命令输出：lspci -knn | grep Net -A3; lsusb; rfkill list

13:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
    Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
    Kernel driver in use: wl
    Kernel modules: wl
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 064e:930b Suyin Corp. 
Bus 001 Device 002: ID 0a5c:216d Broadcom Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
49: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

Answer 1

这可能会帮助你：

1. 键入以下任一命令：

   dmesg | grep -i blue
   

   或者

   sudo lsusb |grep Bluetooth
   

   命令输出将提示您的蓝牙固件是否丢失。它将类似于：

   Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
   

   另请参阅：我如何知道我的笔记本电脑是否有蓝牙？

2. 如果确实缺少固件（.hcd）文件，请尝试搜索并将所需的 .hcd 文件复制到/lib/firmware/brcm。

   另请参阅此错误报告。