答案1
这可能是Dash 搜索功能不起作用.所以你可以尝试下列的:
sudo apt-get install --reinstall unity unity-common unity-lens-applications unity-lens-files unity-lens-gwibber unity-lens-music unity-place-applications unity-place-files unity-scope-musicstores unity-services unity-2d unity-2d-launcher unity-2d-launcher unity-2d-panel unity-2d-places unity-2d-spread unity-asset-pool unity-greeter
然后你可以注销并重新登录或者sudo restart lightdm