[visionegg] Re: pygame segmentation fault

Hi gentle persons,

On 17/05/2005, at 17:53, Kevin J. MacKenzie wrote:

Hi everyone,

I am having trouble getting a piece of code to run on a Windows XP (service pack 2) machine.

I have upgraded to Python 2.4 following the install instructions at www.visionegg.org and all of the dependent packages (using the 1.0 cvs version of the vision egg).

The attached peice of code is what I'm using to test and get going with a stimulus idea. It displays a drifting white noise patch with a fixation cross.

When I run the attached piece of code with the "Attempt to Sychronize buffer swaps" NOT checked it runs fine, but far to fast (I would like to be able to control the speed of the patch). If I run this piece of code with the "Attempt to Sync swaps" checked I get the following pyGame error:

Pygame Parachute Traceback
File "C:\Python24\Lib\site-pacakges\VisionEgg \PlatformDependent.py", line 187, in sync_swap_with_vbl_post_gl_init
Fatal Python error: (pygame parachute) Segmentation Fault


We has some similiar problems here with the onboard graphics - if you can recheck using some dedicated graphic card on AGP. E.g. all shuttle pc's we have here produced similiar errors when using the onboard graphics. *Well, I have to admit I didn't look up the attached codeto the message - but the is so similiar to what I got here before…*

cheers,

Markus




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Markus Bongard
Universidad Miguel Hernandez
Dept. Histologia y Anatomia
Campus San Juan
Aptdo. de Correos 18
E-03550 San Juan de Alicante
SPAIN
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markus.bongard@xxxxxx
visit us at http://cortivis.umh.es
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