Can you provide the code of the OpenGL app you are using? Please also run apport-collect.
** Also affects: unity (Ubuntu) Importance: Undecided Status: New ** Changed in: unity Status: New => Incomplete ** Changed in: unity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1415195 Title: OpenGL "hello world" windowed vsync app brings unity to its knees Status in Unity: Incomplete Status in unity package in Ubuntu: Incomplete Bug description: 1. Create a basic hello world OpenGL app, e.g. one that draws a single triangle to the screen. 2. Use windowed mode with vsync on 3. Try alt+tabbing or activating between different windows and the opengl window by clicking. 4. Notice how laggy and slow it is. 5. Try a different window manager besides unity such as xcfe4 6. Notice that this problem no longer exists. To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1415195/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp