“未找到蓝牙适配器” [关闭]

我使用的是带有Ubuntu 15.04 32位的HP 250 G3笔记本。但是我不能使用蓝牙服务。它显示“未找到蓝牙适配器”。我的蓝牙状态显示：

● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2015-08-17 21:27:33 IST; 2min 2s ago
 Main PID: 5952 (bluetoothd)
   CGroup: /system.slice/bluetooth.service
           └─5952 /usr/sbin/bluetoothd -n

Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: Failed to init ...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: Bluetooth Manag...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Aug 17 21:27:33 arkya-HP-250-G3-Notebook-PC bluetoothd[5952]: bluetoothd[5952...
Hint: Some lines were ellipsized, use -l to show in full.

请帮忙。

PS：以下是命令“ lspci -knn | grep Net -A2; lsusb”给出的输出：

09:00.0 Network controller [0280]: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe [1814:3290]
    Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter [103c:18ec]
    Kernel driver in use: rt2800pci
Bus 003 Device 002: ID 8087:8001 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 003: ID 0bda:5776 Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

我也是HP 250 G3用户。存在的蓝牙驱动程序是Ralink rt3290。使用下面链接中的模块，我成功使蓝牙工作。

https://www.github.com/dineshraj01/rtbth-dkms

您需要编译并使用下面给出的命令进行安装

make
sudo make install

对我来说就像一个魅力。有时在重启时蓝牙无法正常工作。您只需使用下面的命令再次删除并添加该模块即可，它将起作用。

sudo rmmod rtbth
sudo modprobe rtbth

您还可以阅读给定的github存储库上的说明:)