我无法在运行 Ubuntu 11.10 的计算机上使用 Unity-2D。
Unity 3D 运行起来非常顺畅。
当我在终端中输入 unity-2d-panel 时，我在终端中得到以下内容，然后弹出一个错误并停止在那里。
终端输出：
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1230:46: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/slider.png': reason not known, probably a corrupt image file
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1234:55: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/slider_prelight.png': reason not known, probably a corrupt image file
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1238:55: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/slider_vertical.png': reason not known, probably a corrupt image file
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1242:64: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/slider_prelight_vertical.png': reason not known, probably a corrupt image file
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1298:73: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/scrollbar_handle_vertical.png': reason not known, probably a corrupt image file
(unity-2d-panel:3106): GdkPixbuf-WARNING *: Bug! gdk-pixbuf loader 'png' didn't set an error on failure.
(unity-2d-panel:3106): Gtk-WARNING *: Theme parsing error: gtk-widgets.css:1315:64: Failed to load image '/usr/share/themes/Ambiance/gtk-3.0/assets/scrollbar_handle.png': reason not known, probably a corrupt image file
unity-2d-panel: [DEBUG] Scanning panel plugin directory "/usr/lib/unity-2d/plugins/panel"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so"
unity-2d-panel: [DEBUG] Loading panel plugin: "/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so"
unity-2d-panel: symbol lookup error: /usr/lib/libdconf-qt.so.0: undefined symbol: _ZNK15QDBusConnection15internalPointerEv
答案1
要启动 Unity 2D，您必须在登录时选择它，您无法在 Unity 3D 会话中调用它。登录时，您的用户帐户上有一种配置图标，可让您在 Unity 和 Unity 2D 之间进行选择。您可以在这里清楚地看到它：
http://www.chimerarevo.com/wp-content/uploads/2011/08/lightdm-ubuntu-11.10-tema-default.jpeg
