{"action":"closed","issue":{"url":"https://api.github.com/repos/BALL-Project/ball/issues/19","labels_url":"https://api.github.com/repos/BALL-Project/ball/issues/19/labels{/name}","comments_url":"https://api.github.com/repos/BALL-Project/ball/issues/19/comments","events_url":"https://api.github.com/repos/BALL-Project/ball/issues/19/events","html_url":"https://github.com/BALL-Project/ball/issues/19","id":58206093,"number":19,"title":"OS X OpenGL Stereo Bug","user":{"login":"anhi","id":1349738,"avatar_url":"https://avatars.githubusercontent.com/u/1349738?v=3","gravatar_id":"","url":"https://api.github.com/users/anhi","html_url":"https://github.com/anhi","followers_url":"https://api.github.com/users/anhi/followers","following_url":"https://api.github.com/users/anhi/following{/other_user}","gists_url":"https://api.github.com/users/anhi/gists{/gist_id}","starred_url":"https://api.github.com/users/anhi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/anhi/subscriptions","organizations_url":"https://api.github.com/users/anhi/orgs","repos_url":"https://api.github.com/users/anhi/repos","events_url":"https://api.github.com/users/anhi/events{/privacy}","received_events_url":"https://api.github.com/users/anhi/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/BALL-Project/ball/labels/C:%20VIEW","name":"C: VIEW","color":"0000aa"},{"url":"https://api.github.com/repos/BALL-Project/ball/labels/P:%20major","name":"P: major","color":"f6f6f6"},{"url":"https://api.github.com/repos/BALL-Project/ball/labels/R:%20fixed","name":"R: fixed","color":"55ff55"},{"url":"https://api.github.com/repos/BALL-Project/ball/labels/T:%20defect","name":"T: defect","color":"cccccc"}],"state":"closed","locked":false,"assignee":{"login":"anhi","id":1349738,"avatar_url":"https://avatars.githubusercontent.com/u/1349738?v=3","gravatar_id":"","url":"https://api.github.com/users/anhi","html_url":"https://github.com/anhi","followers_url":"https://api.github.com/users/anhi/followers","following_url":"https://api.github.com/users/anhi/following{/other_user}","gists_url":"https://api.github.com/users/anhi/gists{/gist_id}","starred_url":"https://api.github.com/users/anhi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/anhi/subscriptions","organizations_url":"https://api.github.com/users/anhi/orgs","repos_url":"https://api.github.com/users/anhi/repos","events_url":"https://api.github.com/users/anhi/events{/privacy}","received_events_url":"https://api.github.com/users/anhi/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/BALL-Project/ball/milestones/1","labels_url":"https://api.github.com/repos/BALL-Project/ball/milestones/1/labels","id":986650,"number":1,"title":"BALL 1.2.1","description":"The next stable version in the BALL 1.2.x series\n\n''This release has been cancelled due to some critical Problems. All Bugfixes and Features are now in Version 1.3''","creator":{"login":"anhi","id":1349738,"avatar_url":"https://avatars.githubusercontent.com/u/1349738?v=3","gravatar_id":"","url":"https://api.github.com/users/anhi","html_url":"https://github.com/anhi","followers_url":"https://api.github.com/users/anhi/followers","following_url":"https://api.github.com/users/anhi/following{/other_user}","gists_url":"https://api.github.com/users/anhi/gists{/gist_id}","starred_url":"https://api.github.com/users/anhi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/anhi/subscriptions","organizations_url":"https://api.github.com/users/anhi/orgs","repos_url":"https://api.github.com/users/anhi/repos","events_url":"https://api.github.com/users/anhi/events{/privacy}","received_events_url":"https://api.github.com/users/anhi/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":1,"state":"closed","created_at":"2015-02-19T13:10:20Z","updated_at":"2015-02-19T13:10:50Z","due_on":"1970-01-01T00:00:00Z","closed_at":"2015-02-19T13:10:20Z"},"comments":0,"created_at":"2015-02-19T13:10:49Z","updated_at":"2015-02-19T13:10:50Z","closed_at":"2015-02-19T13:10:50Z","body":"**Reported by Garegin Papoian on 17 May 38772789 08:53 UTC**\nBALL 1.1.1 compiled and worked find on an iBook. But on a newer iMac the screen would strongly\nflicker, showing old images, the desktop, etc. It seems that the problem was in \"QGL::StereoBuffers\"\nflag in scene.C. When this was removed, the screen was normal. Without removing this flag, nothing\nelse would work (including turning off the stereo mode from the display). The following documents\nhelped me to solve the problem:\nhttp://www.freelists.org/archives/visionegg/10-2004/msg00000.html\nhttp://www.stereographics.com/x_downloads/guides/hdk.pdf\nHere is the data from my video card:\nDriver name NVKernel\nDriver version 1.4.16.3\nMemory 64 MB\nCurrent resolution 1440 * 900\nPixel frequency 96.1787422 MHz\nHorizontal frequency 54.6462071 KHz\nRefresh rate  59.9139014 Hz\nIt seems that the refresh rate is too low. But one can not change it in the System Preferences.\nGaryk P.\n\n'''Solution:''' Inserting a code that detects display frequency, and disables the \"QGL::StereoBuffers\" flag if the frequency is too low?"}}