14.04 LTS 无破折号/启动器通过软件更新程序更新后

Question

我登录后没有 Dash / Launcher。这是在通过软件更新程序更新后开始的。请帮助修复......我已经花了一天时间尝试在 askubuntu.com 上发布的不同选项。没有任何效果。

通过 Ctl + Alt + F1 到达终端并成功登录。

Here are the logs:
.xsession-errors
Script for ibus started at run_im.
init: unity-panel-service main process (2315) terminated with status 1
init: indicator-printers main process (2459) terminated with status 1
init: unity-settings-daemon main process (2300) terminated with status 1
init: upstart-dbus-session-bridge main process (2293) terminated with status 1
init: hud main process (2304) killed by TERM signal
init: indicator-bluetooth main process (2446) killed by TERM signal
init: indicator-power main process (2448) killed by TERM signal
init: indicator-datetime main process (2451) killed by TERM signal
init: indicator-sound main process (2453) killed by TERM signal
init: indicator-session main process (2483) killed by TERM signal
init: indicator-application main process (2486) killed by TERM signal
init: Disconnected from notified D-Bus bus

更新（2014 年 6 月 8 日）：

Okay, I have reset unity, but I cannot login normally via the login screen.
Steps I follow:
1. Login screen -> blank ... No dash / no launcher / No Status (Notification) Bar on top
2. Ctrl+Alt+F1 to bash terminal
3. export DISPLAY=:0
4. unity-tweak-tool --reset-unity (This does not complete, blocks on OpenGL)
5. I anyways continue to by doing: Ctrl+Alt+F7.
6. Launcher & Dash look good. But there is (a) No Status / Notification Bar on top
7. Continuing to work this way. Haven't logged out since.

Answer 1

我有一个类似的问题，我通过切换终端（CTRL+ALT+F1）然后删除配置文件 ~/.config/dconf/user 来解决它，如下所示：

（！此操作将删除您的 gnome 3 设置！）

sudo service lightdm stop
rm ~/.config/dconf/user
sudo service lightdm start

Answer 2

首先，检查您的机器是否已完全更新。打开命令行（Ctrl++ Alt）F1：

sudo apt-get update
sudo apt-get dist-upgrade

如果出现任何错误，请运行：

sudo apt-get install -f

然后重新运行前两个命令以确保不再出现错误。之后，您可以尝试登录（Ctrl- Alt-F7更改为 GUI）以查看 Unity 现在是否正常工作。

如果 Unity 仍未运行，请按照以下说明重置 Unity 配置（来自如何重置 Unity 配置？）：

使用 14.04 安装 unity-tweak-tool：

sudo apt-get install unity-tweak-tool

然后运行以下命令将 Unity 重置为默认值：

unity-tweak-tool --reset-unity