{"id":4208,"date":"2020-12-12T22:15:18","date_gmt":"2020-12-13T06:15:18","guid":{"rendered":"http:\/\/www.hi-alex.com\/?p=4208"},"modified":"2020-12-30T11:46:33","modified_gmt":"2020-12-30T19:46:33","slug":"disabling-power-management-on-raspberry-pi","status":"publish","type":"post","link":"http:\/\/www.hi-alex.com\/?p=4208","title":{"rendered":"Disabling Power Management on Raspberry Pi"},"content":{"rendered":"\n<p>\u524d\u9635\u5b50\u624d\u642d\u7684\u6811\u8393\u6d3e\u535a\u5ba2\uff0c\u65f6\u4e0d\u65f6\u4f1a\u9047\u5230\u65e0\u6cd5\u8bbf\u95ee\u7684\u95ee\u9898\uff0c\u4f46\u662f\u7b49\u4e00\u4e0b\u4e0b\u53c8\u4f1a\u6062\u590d\u6b63\u5e38\uff0cVNC\u4e0a\u53bb\uff0c\u53d1\u73b0\u7cfb\u7edf\u5e76\u6ca1\u6709\u91cd\u542f\uff0c\u6240\u4ee5\u6000\u7591\u662f\u7f51\u7edc\u7684\u95ee\u9898\u3002\u8fd9\u51e0\u5929\u8d81\u6709\u7a7a\uff0c\u7814\u7a76\u4e86\u4e00\u4e0b\uff0c\u679c\u7136\u662f\u65e0\u7ebf\u7f51\u5361power management\u641e\u7684\u9b3c\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u5728terminal\u4e2d\u6267\u884c<code>journalctl --since=yesterday<\/code>\uff0c\u7136\u540e\u5bfb\u627e\u662f\u5426\u6709<code>wlan0: carrier lost<\/code>\u7684\u6761\u76ee\u3002\u5982\u679c\u6709\u7684\u8bdd\uff0c\u90a3\u606d\u559c\u4f60\uff0c\u7f6a\u9b41\u7978\u9996\u5c31\u662fpower management\u3002<\/p>\n\n\n\n<p>\u8981\u7981\u7528power management\uff0c\u9996\u5148\u786e\u8ba4\u5f53\u524d\u662f\u5f00\u542f\u7684\uff0c\u6267\u884c<code>sudo iw wlan0 get power_save<\/code>\uff0c\u786e\u8ba4\u8fd4\u56de\u7ed3\u679c\u662fPower save: on<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6267\u884c<code>sudo nano \/etc\/rc.local<\/code>\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u5230exit 0\u4e4b\u524d\uff1a<\/p>\n\n\n\n<p><code>\/sbin\/iw dev wlan0 set power_save off<\/code><\/p>\n\n\n\n<p>\u95ee\u9898\u5c31\u6b64\u89e3\u51b3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u9635\u5b50\u624d\u642d\u7684\u6811\u8393\u6d3e\u535a\u5ba2\uff0c\u65f6\u4e0d\u65f6\u4f1a\u9047\u5230\u65e0\u6cd5\u8bbf\u95ee\u7684\u95ee\u9898\uff0c\u4f46\u662f\u7b49\u4e00\u4e0b\u4e0b\u53c8\u4f1a\u6062\u590d\u6b63\u5e38\uff0cVNC\u4e0a\u53bb\uff0c\u53d1\u73b0\u7cfb\u7edf\u5e76\u6ca1\u6709\u91cd\u542f\uff0c\u6240\u4ee5\u6000\u7591\u662f\u7f51\u7edc\u7684\u95ee\u9898\u3002\u8fd9\u51e0\u5929\u8d81\u6709\u7a7a\uff0c\u7814\u7a76\u4e86\u4e00\u4e0b\uff0c\u679c\u7136\u662f\u65e0\u7ebf\u7f51\u5361power management\u641e\u7684\u9b3c\u3002 \u9996\u5148\uff0c\u5728terminal\u4e2d\u6267\u884cjournalctl &#8211;since=yesterday\uff0c\u7136\u540e\u5bfb\u627e\u662f\u5426\u6709wlan0: carrier lost\u7684\u6761\u76ee\u3002\u5982\u679c\u6709\u7684\u8bdd\uff0c\u90a3\u606d\u559c\u4f60\uff0c\u7f6a\u9b41\u7978\u9996\u5c31\u662fpower management\u3002 \u8981\u7981\u7528power management\uff0c\u9996\u5148\u786e\u8ba4\u5f53\u524d\u662f\u5f00\u542f\u7684\uff0c\u6267\u884csudo iw wlan0 get power_save\uff0c\u786e\u8ba4\u8fd4\u56de\u7ed3\u679c\u662fPower save: on \u63a5\u4e0b\u6765\uff0c\u6267\u884csudo nano \/etc\/rc.local\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u5230exit 0\u4e4b\u524d\uff1a \/sbin\/iw dev wlan0 set power_save off \u95ee\u9898\u5c31\u6b64\u89e3\u51b3\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-4208","post","type-post","status-publish","format-standard","hentry","category-18"],"_links":{"self":[{"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/posts\/4208","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4208"}],"version-history":[{"count":6,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/posts\/4208\/revisions"}],"predecessor-version":[{"id":4290,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=\/wp\/v2\/posts\/4208\/revisions\/4290"}],"wp:attachment":[{"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4208"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.hi-alex.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}