我正在使用 DELL Precision M4800。
使用“bluetooth-wizard”搜索蓝牙设备时，它只是扫描，但找不到任何东西。运行“hcitool scan”也找不到任何东西。
串行通信
Bus 004 Device 003: ID 0cf3:817b Atheros Communications, Inc.
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d4)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d4)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d4)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d4)
00:1c.6 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #7 (rev d4)
00:1c.7 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #8 (rev d4)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM87 Express LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GK106GLM [Quadro K2100M] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GK106 HDMI Audio Controller (rev a1)
03:00.0 PCI bridge: Wilocity Ltd. Wil6200 PCI Express Root Port (rev 04)
04:00.0 PCI bridge: Wilocity Ltd. Wil6200 PCI Express Port (rev 04)
04:02.0 PCI bridge: Wilocity Ltd. Wil6200 Wireless PCI Express Port (rev 04)
04:03.0 PCI bridge: Wilocity Ltd. Wil6200 Wireless PCI Express Port (rev 04)
05:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
15:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)
lsusb：
Bus 004 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 004 Device 003: ID 0cf3:817b Atheros Communications, Inc.
Bus 004 Device 002: ID 8087:8000 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 0c45:64d0 Microdia
Bus 003 Device 002: ID 8087:8008 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
hcitool 开发
Devices:
hci0 44:39:C4:59:A1:BD
答案1
对于 Ubuntu 14.04、15.04 和 15.10，可以通过自定义模块修复此问题。我已向上游发送了补丁，它将在某个时候在官方内核中修复。
现在你可以通过运行来安装模块
sudo add-apt-repository ppa:hanipouspilot/bluetooth
sudo apt-get update
sudo apt-get install btusb-lp1506615-dkms
安装模块后，关闭笔记本电脑，而不仅仅是重新启动。之后蓝牙应该可以正常工作。
通过运行以下命令启用蓝牙和无线共存也是有意义的：
sudo tee /etc/modprobe.d/ath9k.conf <<< "options ath9k btcoex_enable=1"
这将修复同时使用 Wi-Fi 和蓝牙时出现的延迟或断开连接问题。它将在重启后应用。