How to fix the problem of missing system settings on Ubuntu 14.04
In fact, one of the main reasons for encountering this problem is that the operation of uninstalling the ibus input method has been performed before, so in order to avoid this problem, please do not uninstall the ibus input method. You can still install the fcitx input method.
If this problem has already occurred, how can it be solved? The easy way is to reinstall the Unity desktop. Use the following command:
sudo apt-get install ubuntu-desktop
After executing the above command, the lost system settings can be retrieved.
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