我已经安装了 ubuntu 16.04，除了蓝牙之外，一切都运行正常。我有一台旧的华硕 k53TK 笔记本，配有 atheros 蓝牙和 wifi 卡，wifi 运行正常。当我使用 ubuntu 14.04 时，蓝牙可以正常工作，所以现在我无法启用它，这有点奇怪。
当我尝试使用命令重置 hciconfig 时：
sudo hciconfig hci0 reset
它打印：无法初始化设备 hci0：连接超时（110）
日志：
$ dmesg | grep -i bluetooth
[ 5.342543] Bluetooth: Core ver 2.21
[ 5.342579] Bluetooth: HCI device and connection manager initialized
[ 5.342586] Bluetooth: HCI socket layer initialized
[ 5.342591] Bluetooth: L2CAP socket layer initialized
[ 5.342601] Bluetooth: SCO socket layer initialized
[ 9.044581] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 9.044587] Bluetooth: BNEP filters: protocol multicast
[ 9.044594] Bluetooth: BNEP socket layer initialized
lsusb
Bus 001 Device 003: ID 04f2:b23b Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 04ca:3002 Lite-On Technology Corp.
Bus 002 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek [Radeon HD 6520G]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series]
00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 12h Processor Root Port
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 12h Processor Root Port
00:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 12h Processor Root Port
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 03)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 13)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40)
00:14.7 SD Host controller: Advanced Micro Devices, Inc. [AMD] FCH SD Flash Controller
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
03:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
sudo hciconfig -a
hci0: Type: BR/EDR Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:21 acl:0 sco:0 commands:7 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: SLAVE ACCEPT
答案1
我找到了 04ca:3002 Lite-On Bluetooth 问题的解决方案 以下是描述和补丁，这是补丁本身
我对 Linux 不是很有经验，但似乎下面的评论特别帮助我解决了。
Comment #3 From freuser 2013-06-17 20:32:15
The order of manual patch application:
rmmod btusb
modprobe ath3k
echo "04ca 3002" > /sys/bus/usb/drivers/ath3k/new_id
Checked on kernels 3.9.4-std-pae and 3.8.13.2-std-def
感谢大家，你们为解决这个问题做出了一些努力，现在我的鼠标可以正常工作了:)