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Blender freezing under certain conditions
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System Information
Operating system: Windows 10 Home 64 bit.
Graphics card: Geforce GTX 780

Blender Version
Broken: 2.77 and 2.78 4bb1e22
Worked: 2.76

Short description of error:
Using Blender after waking up my computer makes it very unresponsive. In 2.78, it freezes for a few seconds to a minute if I click on any value, slider, button, etc. In 2.77 it would freeze when selecting meshes, changing viewports, etc.

Exact steps for others to reproduce the error:

  1. Start Blender.
  2. Put the computer to sleep and wake it up.
  3. Changing any value or slider in the previously started instance of Blender makes it stutter and freeze.
  4. Start another instance of Blender and that instance works fine.
  5. The previous instance needs to be restarted to work properly.



Event Timeline

Sergey Sharybin (sergey) closed this task as Archived.Oct 18 2016, 11:52 AM
Sergey Sharybin (sergey) claimed this task.

This is most likely a driver failing to properly restore OpenGL context after bringing card back to life. From Blender side we can only hope that all resources were properly restored on wake-up and can not have any control on this.

So thanks for the report, but it's out of our scope..