我使用 Ubuntu 14.04 有一段时间了。我的机器配备了无线网卡,还支持蓝牙。一切都运行良好,经过一些更新后,蓝牙适配器不见了。然后,我最近切换到 16.04。但是,我没有蓝牙,无线连接非常不稳定,有时会断开,无线适配器也丢失了。我尝试了找到的某些东西,但都不起作用。非常感谢帮助解决这个问题。
命令输出:
~$ lspci -knn | grep Net -A3
---
07:00.0 Network controller [0280]: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe [1814:3290]
DeviceName: Ralink WLAN Ralink RT3290LE Roma 802.11bgn 1x1 Wi-Fi + BT4.0 combo HMC
Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter [103c:18ec]
Kernel driver in use: rt2800pci
~$ lsusb
---
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 064e:9302 Suyin Corp.
Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
~$ rfkill list
---
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
~$ dmesg | grep -i blue
---
<nothing>