今天，突然之间，我的主题和图标重置为默认样式。有趣的是，这并非到处都发生。“系统设置”中的图标与以前一样。Unity Launchbar具有默认图标。启动文件浏览器（Nautilus）时，我的图标是默认图标。当我从终端使用sudo启动Nautilus时，我选择的图标会重新出现（但仅在此窗口中）。
发生了什么？
如果输入compiz --replace，所有内容都将返回主题/图标集，但Unity Launch栏没有快捷键。
此外，还会出现此错误：
compiz (core) - Info: Loading plugin: unityshell
compiz (core) - Info: Starting plugin: unityshell
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'org.gnome.Shell' yet as we don't have a connection, waiting for it...
WARN 2016-01-20 12:13:52 unity.debug.interface DebugDBusInterface.cpp:217 Unable to load entry point in libxpathselect: libxpathselect.so.1.4: cannot open shared object file: No such file or directory -- full D-Bus introspection will not be available
WARN 2016-01-20 12:13:52 xim.controller XIMController.cpp:103 IBus natively supported.
WARN 2016-01-20 12:13:52 unity.dash.gsettingsscopereader GSettingsScopes.cpp:108 Error fetching protocol metadata for scope: social.scope : Valid key file could not be found in search dirs
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'com.canonical.Unity.Launcher' yet as we don't have a connection, waiting for it...
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'com.canonical.Unity.Dash' yet as we don't have a connection, waiting for it...
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'org.gnome.SessionManager.EndSessionDialog' yet as we don't have a connection, waiting for it...
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'com.canonical.Unity.Session' yet as we don't have a connection, waiting for it...
WARN 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:593 Can't register object 'org.gnome.ScreenSaver' yet as we don't have a connection, waiting for it...
ERROR 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:538 DBus name lost 'org.gnome.Shell'
ERROR 2016-01-20 12:13:52 unity.glib.dbus.server GLibDBusServer.cpp:538 DBus name lost 'com.canonical.Unity'
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
WARN 2016-01-20 12:13:52 unity.key.gnome.grabber GnomeKeyGrabber.cpp:99 Trying to grab a disabled action, we skip it
我解决了（至少看起来像是解决了）。
键入后compiz --replace，大多数Unity桌面都应该是这样，但是有些事情仍然很奇怪，我每次启动Ubuntu时都必须键入此命令。copnfig似乎有问题，因此桌面再次dconf reset -f /org/compiz/变为“正常”，我首先输入以重置配置，然后setsid unity重新启动桌面。我登出并登录后，一切恢复正常，所有图标均应按原样放置，主题如应按样-问题已解决。
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