症状
1.networkmanager图标没了,运行nm-applet显示
代码： 全选
** (nm-applet:7559): WARNING **: <WARN> applet_dbus_manager_start_service(): Could not acquire the NetworkManagerUserSettings service as it is already taken. Return: 3
(nm-applet:7559): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed代码： 全选
/usr/bin/scim
** (nm-connection-editor:7612): WARNING **: Unhandled setting secret type (write) 'vpn/secrets' : 'GHashTable_gchararray+gchararray_'
Segmentation fault (core dumped)
解决方法如下
引用:https://bugs.launchpad.net/ubuntu/+sour ... bug/249404
http://ubuntuforums.org/showthread.php?t=963335&page=3
http://louis3c.blogspot.com/2008/11/ubu ... pplet.html
代码： 全选
* Fix nm-applet can't execute error
1. 修改/etc/dbus-1/system.d/NetworkManager.conf 和 /etc/dbus-1/system.d/nm-applet.conf
將下列紅色字，如果為deny，改allow
<policy context=default>
<allow own="org.freedesktop.NetworkManager"/>
<allow send_destination="org.freedesktop.NetworkManager"/>
<allow send_interface="org.freedesktop.NetworkManager"/>
</policy>
2. 重新啟動 dbus
sudo /etc/init.d/dbus restart
* Fix nm-applet "No connection defined" error
3. 停止 NetworkManager
sudo /etc/init.d/NetworkManager stop
4. 刪除 /etc/network/interfaces 或是更名(rename)
sudo rm /etc/network/interfaces
5. 重新啟動 NetworkManager
sudo /etc/init.d/NetworkManager start
6. 執行nm-applet
