自从我升级到 16.04 后，操作系统就找不到蓝牙适配器了。笔记本电脑是 Acer Aspire V5-573G，我能找到的有关蓝牙适配器的信息只有：“蓝牙 Qualcomm Atheros 蓝牙 4.0”。以下是我执行的一些命令，希望对您有所帮助：
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 Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0.1
bus info: pci@0000:05:00.1
logical name: enp5s0f1
version: 14
serial: 08:9e:01:ce:3d:ac
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8411-2_0.0.1 07/08/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:47 ioport:4000(size=256) memory:b3404000-b3404fff memory:b3400000-b3403fff
输出lspci：
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
01:00.0 3D controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev a1)
04:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01)
05:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 14)
输出rfkill list：
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
dmesg | grep Blue没有任何输出。
输出lsusb：
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 04f2:b3d6 Chicony Electronics Co., Ltd
Bus 002 Device 009: ID 046d:c051 Logitech, Inc. G3 (MX518) Optical Mouse
Bus 002 Device 008: ID 046a:010d Cherry GmbH
Bus 002 Device 007: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
谢谢！
答案1
我遇到了同样的问题。就我而言，我认为这是我安装的旧 Unity 控制中心版本的错误，或者缺少一些依赖项。通过更新 unity-control-center 轻松解决：
sudo apt-get install unity-control-center
希望可以帮到你。