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
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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.
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