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[Bug 1415195] Re: OpenGL "hello world" windowed vsync app brings unity to its knees

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Andrea Azzarone <1415195@xxxxxxxxxxxxxxxxxx>
Date: Tue, 27 Jan 2015 20:48:31 -0000
Reply-to: Bug 1415195 <1415195@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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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