{"action":"created","issue":{"url":"https://api.github.com/repos/Ardour/ardour/issues/373","repository_url":"https://api.github.com/repos/Ardour/ardour","labels_url":"https://api.github.com/repos/Ardour/ardour/issues/373/labels{/name}","comments_url":"https://api.github.com/repos/Ardour/ardour/issues/373/comments","events_url":"https://api.github.com/repos/Ardour/ardour/issues/373/events","html_url":"https://github.com/Ardour/ardour/pull/373","id":249487523,"number":373,"title":"alsautil: show playback only devices","user":{"login":"smk-embedded","id":15685390,"avatar_url":"https://avatars3.githubusercontent.com/u/15685390?v=4","gravatar_id":"","url":"https://api.github.com/users/smk-embedded","html_url":"https://github.com/smk-embedded","followers_url":"https://api.github.com/users/smk-embedded/followers","following_url":"https://api.github.com/users/smk-embedded/following{/other_user}","gists_url":"https://api.github.com/users/smk-embedded/gists{/gist_id}","starred_url":"https://api.github.com/users/smk-embedded/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/smk-embedded/subscriptions","organizations_url":"https://api.github.com/users/smk-embedded/orgs","repos_url":"https://api.github.com/users/smk-embedded/repos","events_url":"https://api.github.com/users/smk-embedded/events{/privacy}","received_events_url":"https://api.github.com/users/smk-embedded/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2017-08-10T21:53:52Z","updated_at":"2017-08-23T00:51:33Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/Ardour/ardour/pulls/373","html_url":"https://github.com/Ardour/ardour/pull/373","diff_url":"https://github.com/Ardour/ardour/pull/373.diff","patch_url":"https://github.com/Ardour/ardour/pull/373.patch"},"body":"Hi guys!\r\nI did my first mixing project with ardour and ran into this issue. I wanted to\r\nmix and master on my laptop with a single usb dac. I was puzzled why the\r\ndevice did not show up, but was working fine with qjackctl. I had a look at\r\nthe code and thought this little contribution might help others, as I hope\r\nmy use case is not so \"beyond .. scope\".\r\nI finished the one mixing project without any problems, crashes or\r\nwhatsoever, so I would consider the patch slightly tested on linux with a\r\nusb dac.\r\nRegards,\r\nStefan"},"comment":{"url":"https://api.github.com/repos/Ardour/ardour/issues/comments/324190402","html_url":"https://github.com/Ardour/ardour/pull/373#issuecomment-324190402","issue_url":"https://api.github.com/repos/Ardour/ardour/issues/373","id":324190402,"user":{"login":"x42","id":30246,"avatar_url":"https://avatars0.githubusercontent.com/u/30246?v=4","gravatar_id":"","url":"https://api.github.com/users/x42","html_url":"https://github.com/x42","followers_url":"https://api.github.com/users/x42/followers","following_url":"https://api.github.com/users/x42/following{/other_user}","gists_url":"https://api.github.com/users/x42/gists{/gist_id}","starred_url":"https://api.github.com/users/x42/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/x42/subscriptions","organizations_url":"https://api.github.com/users/x42/orgs","repos_url":"https://api.github.com/users/x42/repos","events_url":"https://api.github.com/users/x42/events{/privacy}","received_events_url":"https://api.github.com/users/x42/received_events","type":"User","site_admin":false},"created_at":"2017-08-23T00:51:33Z","updated_at":"2017-08-23T00:51:33Z","body":"Which version of jack do you use? (jackd --version)\r\n\r\nI just tested this,  Ardour still launches jackd with the `-d alsa -d <device>`  and asks jack to connect full-duplex instead of  `-d alsa -P <playback only device>`.\r\n\r\nThe only half-duplex device here is a HDMI display (which only works at 4096fpp), so not the best test-case.\r\n\r\njackd starts correctly, only warns \"Cannot open PCM device alsa_pcm for capture. Falling back to playback-only mode\". It ostensibly works, Ardour plays, but it's silent.\r\n\r\nArdour/ALSA does work correctly (with sound), as does jackd with explicit `-P <device>` launched manually or from qjackctl. (perhaps a jack2 bug here 1.9.11 -- debian's 1.9.10+20150825git1ed50c92~dfsg-5)"}}
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