{"action":"created","issue":{"url":"https://api.github.com/repos/tvdzwan/hyperion/issues/216","labels_url":"https://api.github.com/repos/tvdzwan/hyperion/issues/216/labels{/name}","comments_url":"https://api.github.com/repos/tvdzwan/hyperion/issues/216/comments","events_url":"https://api.github.com/repos/tvdzwan/hyperion/issues/216/events","html_url":"https://github.com/tvdzwan/hyperion/issues/216","id":52445497,"number":216,"title":"V4L2 screenshot stuck","user":{"login":"tarkah","id":10239377,"avatar_url":"https://avatars.githubusercontent.com/u/10239377?v=3","gravatar_id":"","url":"https://api.github.com/users/tarkah","html_url":"https://github.com/tarkah","followers_url":"https://api.github.com/users/tarkah/followers","following_url":"https://api.github.com/users/tarkah/following{/other_user}","gists_url":"https://api.github.com/users/tarkah/gists{/gist_id}","starred_url":"https://api.github.com/users/tarkah/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tarkah/subscriptions","organizations_url":"https://api.github.com/users/tarkah/orgs","repos_url":"https://api.github.com/users/tarkah/repos","events_url":"https://api.github.com/users/tarkah/events{/privacy}","received_events_url":"https://api.github.com/users/tarkah/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2014-12-19T03:50:59Z","updated_at":"2015-01-22T16:25:21Z","closed_at":null,"body":"I have the STK1160 usb grabber and am running OpenELEC, the build from the lightberry.eu site that works with this grabber.  The grabber is recognized, but when I try to grab a screenshot, I get stuck... here is the output: \r\n\r\n```\r\nOpenELEC:~ # LD_LIBRARY_PATH=/storage/hyperion/bin /storage/hyperion/bin/hyperio\r\nn-v4l2 /storage/.config/hyperion.config.json --screenshot\r\nV4L2 width=720 height=480\r\nV4L2 pixel format=UYVY\r\nV4L2 grabber signal threshold set to: {0,0,0}\r\nV4L2 grabber started\r\n```\r\n\r\nAnd it just hangs there.  I have tried every possible configuration, NTSC vs PAL, different pixel formats, aspect rations, etc.  I've even used different versions of OpenELEC, but nothing.  The only thing I can think of is maybe my HDMI2AV device is not working.  I use the following device [HDMI2AV](http://www.amazon.com/Mini-Composite-Video-Audio-Converter/dp/B00K3OO5ZY/ref=cm_cr_pr_product_top) and it feels warm when I touch it (there is no led to indicate it is on).  Unfortunately I have no monitor with composite input to test it either.  \r\n\r\nHas anyone experienced this issue and resolved it?  I've already had to buy 2 grabbers because my first was a Somagic chipset, so I really hope it isn't the grabber.  I have already tried plugging the grabber directly into my pi and a powered hub.  \r\n\r\nI have not found any resolution to this... I am thinking it HAS to be a defective converter or grabber, as they are really the only two variables here.  Hopefully I am wrong though and someone has a solution.  Thanks!  \r\n"},"comment":{"url":"https://api.github.com/repos/tvdzwan/hyperion/issues/comments/71048303","html_url":"https://github.com/tvdzwan/hyperion/issues/216#issuecomment-71048303","issue_url":"https://api.github.com/repos/tvdzwan/hyperion/issues/216","id":71048303,"user":{"login":"hallard","id":2471931,"avatar_url":"https://avatars.githubusercontent.com/u/2471931?v=3","gravatar_id":"","url":"https://api.github.com/users/hallard","html_url":"https://github.com/hallard","followers_url":"https://api.github.com/users/hallard/followers","following_url":"https://api.github.com/users/hallard/following{/other_user}","gists_url":"https://api.github.com/users/hallard/gists{/gist_id}","starred_url":"https://api.github.com/users/hallard/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hallard/subscriptions","organizations_url":"https://api.github.com/users/hallard/orgs","repos_url":"https://api.github.com/users/hallard/repos","events_url":"https://api.github.com/users/hallard/events{/privacy}","received_events_url":"https://api.github.com/users/hallard/received_events","type":"User","site_admin":false},"created_at":"2015-01-22T16:25:21Z","updated_at":"2015-01-22T16:25:21Z","body":"Sorry, yes this switch AND also the one on command line for example\r\n`hyperion-v4l2 -v NTSC`\r\nand in configuration file it's\r\n`\r\n    \"grabber-v4l2\" :\r\n    {\r\n        \"device\" : \"/dev/video0\",\r\n        \"input\" : 0,\r\n        \"standard\" : \"NTSC\",\r\n        \"width\" : -1,\r\n        \"height\" :-1,\r\n        \"frameDecimation\" : 2,\r\n        \"sizeDecimation\" : 4,\r\n        \"priority\" : 800,\r\n        \"mode\" : \"2D\",\r\n        \"cropLeft\" : 10,\r\n        \"cropRight\" : 4,\r\n        \"cropTop\" : 50,\r\n        \"cropBottom\" : 4,\r\n        \"redSignalThreshold\" : 0.1,\r\n        \"greenSignalThreshold\" : 0.1,\r\n        \"blueSignalThreshold\" : 0.1\r\n    },\r\n`\r\n\r\n\r\n"}}