{"action":"created","issue":{"url":"https://api.github.com/repos/mono/MonoGame/issues/4550","repository_url":"https://api.github.com/repos/mono/MonoGame","labels_url":"https://api.github.com/repos/mono/MonoGame/issues/4550/labels{/name}","comments_url":"https://api.github.com/repos/mono/MonoGame/issues/4550/comments","events_url":"https://api.github.com/repos/mono/MonoGame/issues/4550/events","html_url":"https://github.com/mono/MonoGame/issues/4550","id":134723192,"number":4550,"title":"Vsync doesn't work on monogame 3.5 [DesktopGL, Mac]","user":{"login":"VinnieH01","id":17299402,"avatar_url":"https://avatars.githubusercontent.com/u/17299402?v=3","gravatar_id":"","url":"https://api.github.com/users/VinnieH01","html_url":"https://github.com/VinnieH01","followers_url":"https://api.github.com/users/VinnieH01/followers","following_url":"https://api.github.com/users/VinnieH01/following{/other_user}","gists_url":"https://api.github.com/users/VinnieH01/gists{/gist_id}","starred_url":"https://api.github.com/users/VinnieH01/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/VinnieH01/subscriptions","organizations_url":"https://api.github.com/users/VinnieH01/orgs","repos_url":"https://api.github.com/users/VinnieH01/repos","events_url":"https://api.github.com/users/VinnieH01/events{/privacy}","received_events_url":"https://api.github.com/users/VinnieH01/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":15,"created_at":"2016-02-18T22:56:36Z","updated_at":"2016-02-20T16:16:30Z","closed_at":null,"body":"I started a new DesktopGL project on my mac and I wanted to check fps so I did \r\n`Console.WriteLine(1 / deltaTime);`\r\n\r\nIve got fixed timestep set to false and Vsync to true : \r\n\r\n`IsFixedTimeStep = false;`\r\n`graphics.SynchronizeWithVerticalRetrace = true;`\r\n\r\nThis is the result as you can see everything was fine at the start but after a while the vsync just turned off and the fps went from 60 to about 8000.\r\n\r\n59,78537\r\n60,89207\r\n58,88935\r\n61,0978\r\n59,49902\r\n59,67548\r\n58,36723\r\n57,99118\r\n64,98697\r\n58,53396\r\n60,98528\r\n55,6796\r\n64,1153\r\n58,10474\r\n59,3789\r\n44,62513\r\n__**4345,937\r\n7639,419\r\n7457,122\r\n7407,408\r\n8250,825\r\n8628,128\r\n8968,61\r\n10131,71\r\n9871,668\r\n10298,66...**__"},"comment":{"url":"https://api.github.com/repos/mono/MonoGame/issues/comments/186636810","html_url":"https://github.com/mono/MonoGame/issues/4550#issuecomment-186636810","issue_url":"https://api.github.com/repos/mono/MonoGame/issues/4550","id":186636810,"user":{"login":"VinnieH01","id":17299402,"avatar_url":"https://avatars.githubusercontent.com/u/17299402?v=3","gravatar_id":"","url":"https://api.github.com/users/VinnieH01","html_url":"https://github.com/VinnieH01","followers_url":"https://api.github.com/users/VinnieH01/followers","following_url":"https://api.github.com/users/VinnieH01/following{/other_user}","gists_url":"https://api.github.com/users/VinnieH01/gists{/gist_id}","starred_url":"https://api.github.com/users/VinnieH01/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/VinnieH01/subscriptions","organizations_url":"https://api.github.com/users/VinnieH01/orgs","repos_url":"https://api.github.com/users/VinnieH01/repos","events_url":"https://api.github.com/users/VinnieH01/events{/privacy}","received_events_url":"https://api.github.com/users/VinnieH01/received_events","type":"User","site_admin":false},"created_at":"2016-02-20T16:16:30Z","updated_at":"2016-02-20T16:16:30Z","body":"@mrhelmut if you use a Mac and do Console.Writeline(1/gameTime.elapsedTime.totalSeconds); and the wait a while, are you sure it dosent show a very high number?"}}