{"action":"created","issue":{"url":"https://api.github.com/repos/asb2m10/dexed/issues/157","repository_url":"https://api.github.com/repos/asb2m10/dexed","labels_url":"https://api.github.com/repos/asb2m10/dexed/issues/157/labels{/name}","comments_url":"https://api.github.com/repos/asb2m10/dexed/issues/157/comments","events_url":"https://api.github.com/repos/asb2m10/dexed/issues/157/events","html_url":"https://github.com/asb2m10/dexed/issues/157","id":348949336,"node_id":"MDU6SXNzdWUzNDg5NDkzMzY=","number":157,"title":"Linux -  'Send current sysex cartridge to DX7' not working","user":{"login":"Sentinel77","id":18003792,"node_id":"MDQ6VXNlcjE4MDAzNzky","avatar_url":"https://avatars3.githubusercontent.com/u/18003792?v=4","gravatar_id":"","url":"https://api.github.com/users/Sentinel77","html_url":"https://github.com/Sentinel77","followers_url":"https://api.github.com/users/Sentinel77/followers","following_url":"https://api.github.com/users/Sentinel77/following{/other_user}","gists_url":"https://api.github.com/users/Sentinel77/gists{/gist_id}","starred_url":"https://api.github.com/users/Sentinel77/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Sentinel77/subscriptions","organizations_url":"https://api.github.com/users/Sentinel77/orgs","repos_url":"https://api.github.com/users/Sentinel77/repos","events_url":"https://api.github.com/users/Sentinel77/events{/privacy}","received_events_url":"https://api.github.com/users/Sentinel77/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-08-09T01:46:47Z","updated_at":"2018-11-15T01:05:29Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"Hi,\r\n\r\n'Send current sysex cartridge to DX7' is not working on Linux.\r\nIt works on Windows.  Maybe someone can also test on Mac.\r\n\r\n With my testing it seems that Linux is having a hard time sending a large single buffer of 4104 bytes.\r\n\r\nRecieving a cartridge from the DX7 to Dexed works fine. Single voices send ok also.\r\n\r\n I did a test with KMidimon to monitor the midi through connector on the DX7 as Dexed tries to send a cartridge.\r\nThis loopback test showed that only 3840 bytes looped back.\r\nSo the Linux system is not transmitting the full 4104 bytes.\r\n\r\n![midi_through_sysex_capture](https://user-images.githubusercontent.com/18003792/43873787-1802baae-9b56-11e8-9723-eb1cb0ec3728.png)\r\n\r\n\r\n\r\n If I capture a cartridge from the DX7 using KMidimon, it shows that Linux seems to be splitting the 4104 sysex into 256 byte buffers.\r\nI can then use KMidimon to play back this capture to the DX7 and it successfully transfers the sysex cartridge to the DX7.\r\n\r\n![cartridge_sysex_capture](https://user-images.githubusercontent.com/18003792/43873789-1df78ad4-9b56-11e8-9605-3243f1d270e5.png)\r\n\r\n\r\nSo a possible solution would be if Dexed can send the cartridge in 2 or more smaller buffers, rather than one large one. \r\n\r\n\r\nI am using the Roland UM-ONE MK2, and I also tried with a generic usb midi interface.\r\n\r\n\r\n\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/asb2m10/dexed/issues/comments/438877348","html_url":"https://github.com/asb2m10/dexed/issues/157#issuecomment-438877348","issue_url":"https://api.github.com/repos/asb2m10/dexed/issues/157","id":438877348,"node_id":"MDEyOklzc3VlQ29tbWVudDQzODg3NzM0OA==","user":{"login":"edbradshaw","id":5855090,"node_id":"MDQ6VXNlcjU4NTUwOTA=","avatar_url":"https://avatars2.githubusercontent.com/u/5855090?v=4","gravatar_id":"","url":"https://api.github.com/users/edbradshaw","html_url":"https://github.com/edbradshaw","followers_url":"https://api.github.com/users/edbradshaw/followers","following_url":"https://api.github.com/users/edbradshaw/following{/other_user}","gists_url":"https://api.github.com/users/edbradshaw/gists{/gist_id}","starred_url":"https://api.github.com/users/edbradshaw/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/edbradshaw/subscriptions","organizations_url":"https://api.github.com/users/edbradshaw/orgs","repos_url":"https://api.github.com/users/edbradshaw/repos","events_url":"https://api.github.com/users/edbradshaw/events{/privacy}","received_events_url":"https://api.github.com/users/edbradshaw/received_events","type":"User","site_admin":false},"created_at":"2018-11-15T01:05:29Z","updated_at":"2018-11-15T01:05:29Z","author_association":"NONE","body":"I too am unable to send patches and I am using the Roland UM-ONE.  I have the option to set the MIDI input device but there is no section to select MIDI out. "}}
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