{"id":1309,"date":"2015-02-15T15:58:16","date_gmt":"2015-02-15T15:58:16","guid":{"rendered":"http:\/\/rglinuxtech.com\/?p=1309"},"modified":"2015-02-15T15:58:16","modified_gmt":"2015-02-15T15:58:16","slug":"arm-odroid-u3-fan-control-success","status":"publish","type":"post","link":"https:\/\/rglinuxtech.com\/?p=1309","title":{"rendered":"ARM – Odroid U3 Fan Control – Success.."},"content":{"rendered":"

Updated the Odroid U3<\/strong> to the latest version of odroid-3.19.y (# git clone -b odroid-3.19.y –single-branch https:\/\/github.com\/tobiasjakobi\/linux-odroid<\/strong><\/span> ).<\/p>\n

After checking that all the pwm-fan and temperature options were selected in the kernel config, I set ‘Default Thermal governor<\/em>‘ to ‘step-wise<\/em>‘.<\/p>\n

After compiling\/installing, I tried some more tests:<\/p>\n

Using ‘stress’ to raise the temperature:<\/p>\n

# stress --cpu 4 --timeout 60<\/strong>\r\nstress: info: [2842] dispatching hogs: 4 cpu, 0 io, 0 vm, 0 hdd<\/strong><\/pre>\n
– after around 30 seconds, the temperature is above the 70 degree mark, and the fan starts..<\/p>\n
When stress finishes, temperature drops to around 65, and the fan stops..<\/p>\n
[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n69000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n70000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n71000<\/strong>\r\n<<< fan starts >>><\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n71000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n71000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n71000<\/strong>\r\n.....................\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n70000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n70000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n70000<\/strong>\r\n<< stress stops >>><\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n71000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n70000<\/strong>\r\n....................\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n65000<\/strong>\r\n<< fan stops >><\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n63000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n60000<\/strong>\r\n[root@rgodroid rgadsdon]# cat \/sys\/devices\/virtual\/thermal\/thermal_zone0\/temp<\/strong>\r\n60000<\/strong><\/pre>\n
So now the fan is ‘automatic’, without the need for any external programs..<\/p>\n
Thanks to tobiasjakobi<\/em><\/strong> for his help with this, and porting the latest (v6) patches to odroid-3.19.y.<\/p>\n
Robert Gadsdon.\u00a0\u00a0 February 15, 2015.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
Updated the Odroid U3 to the latest version of odroid-3.19.y (# git clone -b odroid-3.19.y –single-branch https:\/\/github.com\/tobiasjakobi\/linux-odroid ). After checking that all the pwm-fan and temperature options were selected in the kernel config, I set ‘Default Thermal governor‘ to ‘step-wise‘. After compiling\/installing, I tried some more tests: Using ‘stress’ to raise the temperature: # stress –cpu 4 …<\/span> Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15],"tags":[1174,1006,242,795,1011,1013,1175,1012],"class_list":["post-1309","post","type-post","status-publish","format-standard","hentry","category-linux-2","tag-arm","tag-fan-control","tag-linux","tag-odroid-u3","tag-odroid-linux-3-19-y","tag-stress","tag-success","tag-v6-patches-ported"],"_links":{"self":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1309"}],"version-history":[{"count":1,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1309\/revisions"}],"predecessor-version":[{"id":1310,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1309\/revisions\/1310"}],"wp:attachment":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}