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“rfkill list all”在命令行中不显示任何内容

tag-icon • tag-icon 12.04 command-line bluetooth ralink rfkill
“rfkill list all”在命令行中不显示任何内容

我使用的是 Ubuntu 12.04 和 Windows 8.1 的双启动。当我运行 rfkill list all 时，它显示如下：

:~$ rfkill list all
:~$

请帮忙。

更新：

笔记本电脑型号：Fujisu Lifebook LH532。它有一个 WiFi 和一个蓝牙设备（ralink rt3290）。它们在 Windows 中都可以正常工作。在 Ubuntu 中，我通过网络帮助使 WiFi 正常工作，并尝试使用蓝牙，但仍然没有成功。

串行通信 是：

:~$ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
03:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
03:00.1 Bluetooth: Ralink corp. RT3290 Bluetooth

和系统配置是

:~$ iwconfig
lo        no wireless extensions.

usb0      no wireless extensions.

ra0       Ralink STA  ESSID:""  Nickname:"RT3290STA"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Bit Rate:1 Mb/s   
          RTS thr:off   Fragment thr:off
          Link Quality=10/100  Signal level:0 dBm  Noise level:0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

eth0      no wireless extensions.

答案1

如果没有内容可显示，则不会显示任何内容。此命令不会给出类似 的消息no wireless devices，这将是一个改进。

从手册页中：

list [type]
             List the current state of all available rfkill-using devices, or
              just all of the given type.

因此，如果没有任何内容可列出，那么它将不会显示任何内容。

我的输出rfkill list和你的一样——什么都没有。

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