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nm-applet 出现错误

tag-icon • tag-icon networking wireless network-manager dbus iwlwifi
nm-applet 出现错误

nm-applet连接无线网络时总是让我很为难。我经常要重启它并尝试多次才能连接到网络。有时甚至重启电脑也无济于事。这次我从 CLI 运行它，得到了以下信息：

** (nm-applet:2950): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-t6ky00XpYq: Connection refused

    ** (nm-applet:2950): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files

    (nm-applet:2950): nm-applet-WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files

    (nm-applet:2950): nm-applet-WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files

以下是输出lspci -knn | grep Net -A2

02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 93)
    Subsystem: Intel Corporation Device [8086:5070]
    Kernel driver in use: iwlwifi

答案1

  • org.freedesktop.NetworkManager服务文件由包提供network-manager。

    $ grep -rl NetworkManager /etc/dbus-1/ /usr/share/dbus-1/
/etc/dbus-1/system.d/nm-pptp-service.conf
/etc/dbus-1/system.d/nm-strongswan-service.conf
/etc/dbus-1/system.d/nm-vpnc-service.conf
/etc/dbus-1/system.d/nm-openvpn-service.conf
/etc/dbus-1/system.d/org.freedesktop.NetworkManager.conf
/etc/dbus-1/system.d/nm-iodine-service.conf
/etc/dbus-1/system.d/nm-openconnect-service.conf
/usr/share/dbus-1/system-services/org.freedesktop.nm_dispatcher.service

$ dpkg -S /etc/dbus-1/system.d/org.freedesktop.NetworkManager.conf
network-manager: /etc/dbus-1/system.d/org.freedesktop.NetworkManager.conf

  • 尝试重新安装然后重启

    sudo apt-get install --reinstall network-manager
sudo reboot

答案2

该问题与网络管理器无关。

这是 iwlwifi 驱动程序和适配器的问题。

据报道，关闭此适配器的省电功能可以解决这个问题。可以在终端中运行

sudo iwconfig wlan0 power off

但重启后此设置不会保留。

iwlwifi我会通过运行在模块中关闭它

sudo tee /etc/modprobe.d/iwlwifi.conf <<< "options iwlwifi power_save=0"

如果关闭iwlwifi模块中的省电功能没有帮助，您可以通过以下方式恢复

sudo rm /etc/modprobe.d/iwlwifi.conf

你也可以通过运行sudo iwconfig wlan0 power off来添加/etc/rc.local

sudo -H gedit /etc/rc.local

并在行sudo iwconfig wlan0 power off前添加exit 0。

此命令将始终在启动时运行。

另一个可能有帮助的内核选项是options iwlwifi 11n_disable=1。

可以通过以下方式设置

sudo tee /etc/modprobe.d/iwlwifi.conf <<< "options iwlwifi 11n_disable=1"

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