SVN Blender crashes when opening second window. #33429

New Issue

Alex Court · 2012-12-06T15:01:24+01:00

Alex Court commented

2012-12-06 15:01:24 +01:00

%%%Everytime I try to open a new window (User Preferences, Duplicate Area into new Window command etc.) Blender crashes on the last SVN build.
I've tested several builds, 52795 was the last. The problem doesn't occure on the official 2.64 build.

System:
Graphic: Intel HD 2000 for Displaying and Interface, Geforce 560ti for Rendering
OS: Windows 7 x64
Processor: Intel 2600k

%%%

%%%Everytime I try to open a new window (User Preferences, Duplicate Area into new Window command etc.) Blender crashes on the last SVN build. I've tested several builds, 52795 was the last. The problem doesn't occure on the official 2.64 build. System: Graphic: Intel HD 2000 for Displaying and Interface, Geforce 560ti for Rendering OS: Windows 7 x64 Processor: Intel 2600k %%%

Alex Court commented

2012-12-06 15:01:24 +01:00

Changed status to: 'Open'

Brecht Van Lommel commented

2012-12-06 15:10:15 +01:00

%%%Maybe this is related to the new Multisample option in the user preferences, did you enabled that?%%%

Alex Court commented

2012-12-06 15:24:34 +01:00

%%%The problem is very strange, I played with all the OpenGL stettings in the user preferences. The crashes appear by random as far as I can see. For example sometimes it crashes with everything enabled (Multisampling, AA, VBO) , sometimes it doesn't. I'll try to narrow the problem down and post again. Thank you for your help, Brecht!
%%%

%%%The problem is very strange, I played with all the OpenGL stettings in the user preferences. The crashes appear by random as far as I can see. For example sometimes it crashes with everything enabled (Multisampling, AA, VBO) , sometimes it doesn't. I'll try to narrow the problem down and post again. Thank you for your help, Brecht! %%%

Alex Court commented

2012-12-06 15:31:01 +01:00

%%%Okay, me again. Got to solve the problem. Blender does only crash when Multisampling is enabled on startup. If its disabled at startup and I enable it in the User Preferences, Blender runs fine without crashes until I close the program and open it again. So you were right, the problem has something to do with the Multisample option. %%%

Brecht Van Lommel commented

2012-12-06 15:46:24 +01:00

%%%Ok, the Multisample option only takes effect after restarting Blender, so that makes sense.

We've had issues with Intel and multiple OpenGL windows before, previously it wouldn't work at all. Maybe there is a workaround we can do here, for now I suggest to keep this option disabled, Intel's OpenGL support is not known for being the most reliable.%%%

%%%Ok, the Multisample option only takes effect after restarting Blender, so that makes sense. We've had issues with Intel and multiple OpenGL windows before, previously it wouldn't work at all. Maybe there is a workaround we can do here, for now I suggest to keep this option disabled, Intel's OpenGL support is not known for being the most reliable.%%%

Sergey Sharybin commented

2012-12-06 17:21:00 +01:00

%%%I've already looked into this issue and there's no currently workaround which will always work. We'll need to have more statistics about cards and drivers, but this will take time.

For now i've disabled multisamples on windows+intel cards, it's the most safe solution for upcoming release.

Thanks for the report, but currently we can not make more about it.%%%

%%%I've already looked into this issue and there's no currently workaround which will always work. We'll need to have more statistics about cards and drivers, but this will take time. For now i've disabled multisamples on windows+intel cards, it's the most safe solution for upcoming release. Thanks for the report, but currently we can not make more about it.%%%

Sergey Sharybin commented

2012-12-06 17:21:01 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2012-12-06 17:21:01 +01:00

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SVN Blender crashes when opening second window. #33429