調べたこと、作ったことをメモしています。
こちらに移行中: https://blog.shimazu.me/

ubuntu-users - Ring Switcher plugin missing in Windows Management in Ubuntu 13.04 Desktop

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Link: ubuntu-users - Ring Switcher plugin missing in Windows Management in Ubuntu 13.04 Desktop

<blockquote class="link_og_blockquote">Ring Switcher plugin missing in Windows Management in Ubuntu 13.04 Desktop. Hi, Ring Switcher plugin missing in Windows Management in Ubuntu 13.04 Unity Desktop Shell. Any...</blockquote><p>Ring Switcherを使うためには compiz-pluginsを入れましょう</p>