{"height":"190","author_url":"https://blog.hatena.ne.jp/HTN20190109/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2026%2F03%2F30%2F213705\" title=\"\u97f3\u91cf\u8a2d\u5b9a - HTN20190109\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"Ubuntu (24)https://www.st.itc.keio.ac.jp/ja/faq_linux_audio_mute_st.html amixer sget Masteramixer sset Master 50% Debian (13) amixer sget Masteramixer sset Master 50% \u203broot\u30e6\u30fc\u30b6\u3067\u5b9f\u884c\u3059\u308b\u3068\u3001\u4e0b\u8a18\u30a8\u30e9\u30fc\u3068\u306a\u308bamixer: Mixer attach default error: Host is down CentOS (RL9) amixer sget Masteramixer sset Master 50% Windows\u2026","width":"100%","published":"2026-03-30 21:37:05","provider_url":"https://hatena.blog","blog_title":"HTN20190109\u306e\u65e5\u8a18","url":"https://htn20190109.hatenablog.com/entry/2026/03/30/213705","version":"1.0","image_url":null,"blog_url":"https://htn20190109.hatenablog.com/","author_name":"HTN20190109","provider_name":"Hatena Blog","categories":["OS"],"type":"rich","title":"\u97f3\u91cf\u8a2d\u5b9a"}