{"action":"created","issue":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/892","labels_url":"https://api.github.com/repos/raspberrypi/linux/issues/892/labels{/name}","comments_url":"https://api.github.com/repos/raspberrypi/linux/issues/892/comments","events_url":"https://api.github.com/repos/raspberrypi/linux/issues/892/events","html_url":"https://github.com/raspberrypi/linux/issues/892","id":62355937,"number":892,"title":"tvservice -o then tvservice -p results on powered on dipslay but donthing displayed.","user":{"login":"pssc","id":1763553,"avatar_url":"https://avatars.githubusercontent.com/u/1763553?v=3","gravatar_id":"","url":"https://api.github.com/users/pssc","html_url":"https://github.com/pssc","followers_url":"https://api.github.com/users/pssc/followers","following_url":"https://api.github.com/users/pssc/following{/other_user}","gists_url":"https://api.github.com/users/pssc/gists{/gist_id}","starred_url":"https://api.github.com/users/pssc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pssc/subscriptions","organizations_url":"https://api.github.com/users/pssc/orgs","repos_url":"https://api.github.com/users/pssc/repos","events_url":"https://api.github.com/users/pssc/events{/privacy}","received_events_url":"https://api.github.com/users/pssc/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-03-17T10:29:05Z","updated_at":"2015-03-17T16:04:42Z","closed_at":null,"body":"I have tried this with two different displays and 3.12 and 3.18.... on a B+ and rev2 B."},"comment":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/comments/82435914","html_url":"https://github.com/raspberrypi/linux/issues/892#issuecomment-82435914","issue_url":"https://api.github.com/repos/raspberrypi/linux/issues/892","id":82435914,"user":{"login":"popcornmix","id":1053730,"avatar_url":"https://avatars.githubusercontent.com/u/1053730?v=3","gravatar_id":"","url":"https://api.github.com/users/popcornmix","html_url":"https://github.com/popcornmix","followers_url":"https://api.github.com/users/popcornmix/followers","following_url":"https://api.github.com/users/popcornmix/following{/other_user}","gists_url":"https://api.github.com/users/popcornmix/gists{/gist_id}","starred_url":"https://api.github.com/users/popcornmix/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/popcornmix/subscriptions","organizations_url":"https://api.github.com/users/popcornmix/orgs","repos_url":"https://api.github.com/users/popcornmix/repos","events_url":"https://api.github.com/users/popcornmix/events{/privacy}","received_events_url":"https://api.github.com/users/popcornmix/received_events","type":"User","site_admin":false},"created_at":"2015-03-17T16:04:42Z","updated_at":"2015-03-17T16:04:42Z","body":"The sdl app will have created it's own framebuffer and will have a pointer to the framebuffer memory, so it will have to handle this itself.\r\nReally I think you should not power off HDMI when apps are using the screen.\r\nYou can use:\r\n```\r\nvcgencmd displays_power 0\r\n```\r\nand\r\n```\r\nvcgencmd displays_power 1\r\n```\r\nwhich is a less intrusive way of removing the HDMI output signal but leaves the overlays intact."}}