[Python-apps-team] Bug#534764: Bug#534764: mayavi2: GLXBadContext when creating new scene

[Varun Hiremath]

forwarded 534764 https://svn.enthought.com/enthought/ticket/1824
thanks

Hi Kevin,

On Fri, 26 Jun, 2009 at 06:08:59PM -0700, Kevin Mitchell wrote:
> ipython -wthread
> 
> and at the prompt the following commands
> 
> from enthought.mayavi import mlab,api
> mlab.test_surf()
> 
> upon which I see
> """
> The program 'python' received an X Window System error.
> This probably reflects a bug in the program.
> The error was 'GLXBadContext'.
>   (Details: serial 63 error_code 154 request_code 143 minor_code 5)
> ...
> """
> and I'm dumped back to the command prompt
> 
> I've found that one workaround is to manually start the engine first:
> 
> from enthought.mayavi import mlab,api
> api.Engine().start()
> mlab.test_surf()
> 
> will give me a working figure.
> 
> This workaround does not however work for the OffScreenEngine:
> 
> from enthought.mayavi import mlab,api
> api.OffScreenEngine().start()
> mlab.test_surf()

Thanks for the report.

For me only the OffScreenEngine doesn't work, but the regular mode
works fine and I am able to see the popup window. 

I have forwarded your report upstream:
https://svn.enthought.com/enthought/ticket/1824

Thanks,
Varun

------------------------
$$ ipython -wthread
Python 2.5.4 (r254:67916, Feb 18 2009, 03:00:47)
Type "copyright", "credits" or "license" for more information.

IPython 0.8.4 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object'. ?object also works, ?? prints more.

In [1]: from enthought.mayavi import mlab,api

In [2]: mlab.test_surf()
Failed to initialize GEM.  Falling back to classic.

(python:20034): Gtk-CRITICAL **: gtk_widget_set_colormap: assertion `!GTK_WIDGET_REALIZED (widget)' failed
Out[2]: <enthought.mayavi.modules.surface.Surface object at 0x7f59830>

In [3]: api.OffScreenEngine().start()

In [4]: mlab.test_surf()
Failed to initialize GEM.  Falling back to classic.
The program 'python' received an X Window System error.
This probably reflects a bug in the program.
The error was 'GLXBadCurrentWindow'.
  (Details: serial 145 error_code 171 request_code 153 minor_code 5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
------------------------

-- 
Varun Hiremath                  http://eccentric.mae.cornell.edu/~vh63/