自从我升级到 16.04 后，操作系统再也找不到蓝牙适配器了。笔记本电脑是 Acer Aspire V5-573G，我能找到的关于蓝牙适配器的所有信息是：“Bluetooth Qualcomm Atheros Bluetooth 4.0”。以下是我执行的一些命令，希望对您有所帮助：
的输出sudo lshw -class network：
*-network
description: Wireless interface
product: AR9462 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: 01
serial: 24:fd:52:ee:f4:b3
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.4.0-24-generic firmware=N/A ip=192.168.0.19 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:18 memory:b3500000-b357ffff memory:b3580000-b358ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit …