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蓝牙不适用于 Ubuntu 18.04

tag-icon • tag-icon drivers 18.04 bluetooth ubuntu-drivers
蓝牙不适用于 Ubuntu 18.04

我在 Alienware 17 上安装了 Ubuntu 18.04，除了蓝牙之外，其他一切都运行正常。蓝牙处于活动状态，但我无法连接耳机、电话和鼠标。

sudo dmesg | grep -i bluetooth

[    4.733843] Bluetooth: Core ver 2.22
[    4.733970] Bluetooth: HCI device and connection manager initialized
[    4.733973] Bluetooth: HCI socket layer initialized
[    4.733975] Bluetooth: L2CAP socket layer initialized
[    4.733979] Bluetooth: SCO socket layer initialized
[    4.941900] Bluetooth: hci0: BCM: chip id 63
[    4.942900] Bluetooth: hci0: BCM: features 0x07
[    4.958903] Bluetooth: hci0: kacub18pc
[    4.959898] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
[    4.960174] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-13d3-3411.hcd failed with error -2
[    4.960176] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-13d3-3411.hcd not found
[    6.157166] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    6.157167] Bluetooth: BNEP filters: protocol multicast
[    6.157171] Bluetooth: BNEP socket layer initialized
[   30.844116] Bluetooth: RFCOMM TTY layer initialized
[   30.844120] Bluetooth: RFCOMM socket layer initialized
[   30.844125] Bluetooth: RFCOMM ver 1.11
[   75.236262] Bluetooth: hci0: last event is not cmd complete (0x0f)
[   88.291313] Bluetooth: hci0: last event is not cmd complete (0x0f)
[  107.311359] Bluetooth: hci0: last event is not cmd complete (0x0f)
...

答案1

尝试在终端中执行以下命令。

这将下载适用于 Linux 内核的 Broadcom 蓝牙固件到/lib/firmware/brcm。

sudo wget --tries=3 --timeout=120 https://github.com/winterheart/broadcom-bt-firmware/raw/master/brcm/BCM20702A1-13d3-3411.hcd -P /lib/firmware/brcm

安装固件后，只需重新启动即可加载驱动程序。

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