{"id":336,"date":"2012-05-21T19:29:23","date_gmt":"2012-05-21T16:29:23","guid":{"rendered":"http:\/\/www.rinta-aho.org\/blog\/?p=336"},"modified":"2015-11-03T10:10:33","modified_gmt":"2015-11-03T08:10:33","slug":"mac-os-x-idle-sleep-problem","status":"publish","type":"post","link":"http:\/\/www.rinta-aho.org\/blog\/mac-os-x-idle-sleep-problem\/","title":{"rendered":"Mac OS X 10.7.4 idle sleep problem"},"content":{"rendered":"<p>I suddenly noticed that both my MacBook and Mac Mini were not respecting the idle sleep timer, i.e. they never went to sleep mode even if I didn&#8217;t touch the keyboard or mouse for hours. Both did go to sleep when selecting &#8220;Sleep&#8221; from the Apple menu, and MacBook slept when the lid was closed. However, when running MacBook in the &#8220;clamshell mode&#8221; (lid closed with external display + keyboard + mouse), it acted as Mac Mini, never sleeping automatically.<\/p>\n<p>I started to Google about the problem and found several discussion threads offering different types of solutions to the problem. I tried resetting the PMC, disabling BlueTooth, disconnecting all external devices, disabling all sharing, disabling iCloud, Time Machine backups, uninstalling Google Updater, etc. And suddenly the sleep started working. I rebooted and started more systematical tracing of the problem software. Eventually, by following the &#8220;kill process-idle-kill another process-idle&#8221; -technique, I found out that the two problem software I had were the SMC Fan Control and Hardware Monitor. It seems that a recent update to Mac OS X had changed the SMC API and these two utilities accessing that API somehow caused the idle timer never reaching even the lowest one minute setting I was using. Uninstalling those two, and the idle sleep works again as it should (in 10.7.4). I hope those utilities get an update in the future so that I can install them again.<\/p>\n<p>It would have been much easier to debug (and fix) this if Mac OS X was open source&#8230;<\/p>\n<a class=\"synved-social-button synved-social-button-share synved-social-size-32 synved-social-resolution-single synved-social-provider-facebook nolightbox\" data-provider=\"facebook\" target=\"_blank\" rel=\"nofollow\" title=\"Share on Facebook\" href=\"http:\/\/www.facebook.com\/sharer.php?u=http%3A%2F%2Fwww.rinta-aho.org%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F336&#038;t=Mac%20OS%20X%2010.7.4%20idle%20sleep%20problem&#038;s=100&#038;p&#091;url&#093;=http%3A%2F%2Fwww.rinta-aho.org%2Fblog%2Fwp-json%2Fwp%2Fv2%2Fposts%2F336&#038;p&#091;images&#093;&#091;0&#093;=&#038;p&#091;title&#093;=Mac%20OS%20X%2010.7.4%20idle%20sleep%20problem\" style=\"font-size: 0px;width:32px;height:32px;margin:0;margin-bottom:5px;margin-right:5px\"><img loading=\"lazy\" decoding=\"async\" alt=\"Facebook\" title=\"Share on 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Both did go to sleep when selecting &#8220;Sleep&#8221; from the Apple menu, and MacBook slept when the lid was closed. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.rinta-aho.org\/blog\/mac-os-x-idle-sleep-problem\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Mac OS X 10.7.4 idle sleep problem&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-336","post","type-post","status-publish","format-standard","hentry","category-osx"],"_links":{"self":[{"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/posts\/336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/comments?post=336"}],"version-history":[{"count":5,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/posts\/336\/revisions"}],"predecessor-version":[{"id":382,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/posts\/336\/revisions\/382"}],"wp:attachment":[{"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/media?parent=336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/categories?post=336"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.rinta-aho.org\/blog\/wp-json\/wp\/v2\/tags?post=336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}