Qualcomm Atheros QCA9565 / AR9565 (Dell 1705)：未检测到蓝牙

Question

我是一名正在尝试适应 Linux 的 Windows 用户。目前，我正在运行 Ubuntu 16.04。

最近，我将我的无线网卡从 Realtek RT3290（在 Ubuntu 和 Mint 下存在严重的连接问题）换成了 Qualcomm QCA9565 （也称为 DELL 1705）。

问题是：我没有蓝牙，也没有卡。以前，使用 RT3290 时，蓝牙模块无法加载，但我确实在“rfkill list”下看到了一些与蓝牙相关的内容。现在，我什么都看不到了！此模块安装在装有 Windows 的戴尔笔记本电脑上，蓝牙部分工作正常。

以下是一些信息：

angourakis@angourakis-nb ~ $ 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 04f3:0280 Elan Microelectronics Corp. 
    Bus 002 Device 002: ID 0bda:5775 Realtek Semiconductor Corp. HP "Truevision HD" laptop camera
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

angourakis@angourakis-nb ~ $ uname -a
    Linux angourakis-nb 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

angourakis@angourakis-nb ~ $ ls -l /sys/class/bluetooth
    ls: cannot access '/sys/class/bluetooth': No such file or directory

angourakis@angourakis-nb ~ $ lsmod | grep bt
    btrfs                 987136  0
    xor                    24576  1 btrfs
    raid6_pq              102400  1 btrfs

angourakis@angourakis-nb ~ $ rfkill list
    0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

angourakis@angourakis-nb ~ $ lspci -nnk | grep 0280 -A2
    08:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
    Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c]
    Kernel driver in use: ath9k

angourakis@angourakis-nb ~ $ sudo modprobe ath9k && dmesg | grep ath
    [    3.836205] ath: phy0: WB335 1-ANT card detected
    [    3.836209] ath: phy0: Set BT/WLAN RX diversity capability
    [    3.845203] ath: phy0: Enable LNA combining
    [    3.846545] ath: phy0: ASPM enabled: 0x43
    [    3.846548] ath: EEPROM regdomain: 0x60
    [    3.846548] ath: EEPROM indicates we should expect a direct regpair map
    [    3.846550] ath: Country alpha2 being used: 00
    [    3.846551] ath: Regpair used: 0x60
    [    4.014927] ath9k 0000:08:00.0 wlp8s0: renamed from wlan0
    [   10.366513] ath: EEPROM regdomain: 0x807c
    [   10.366516] ath: EEPROM indicates we should expect a country code
    [   10.366517] ath: doing EEPROM country->regdmn map search
    [   10.366518] ath: country maps to regdmn code: 0x3a
    [   10.366520] ath: Country alpha2 being used: CA
    [   10.366520] ath: Regpair used: 0x3a
    [   10.366522] ath: regdomain 0x807c dynamically updated by country IE
    [  730.476683] ath: EEPROM regdomain: 0x807c
    [  730.476686] ath: EEPROM indicates we should expect a country code
    [  730.476686] ath: doing EEPROM country->regdmn map search
    [  730.476687] ath: country maps to regdmn code: 0x3a
    [  730.476688] ath: Country alpha2 being used: CA
    [  730.476689] ath: Regpair used: 0x3a
    [  730.476690] ath: regdomain 0x807c dynamically updated by country IE

你有什么建议吗？奇怪的是，我也尝试安装 Windows 10，但它也无法识别我的蓝牙。