Thanks - issue created.

I also find that everything proceeds fine if I remove the negative
glx_context_id check (i.e. it imports successfully and the program also
seems to behave normally).

-damien

On Mon, Jul 13, 2015 at 3:13 PM, Rob van der Most <[email protected]>
wrote:

> That probably means we are using a 64 bit pointer as a 32 bit pointer
> somewhere. Can you create an issue for this?
>
> Rob
> On 13 Jul 2015 00:42, "Damien Mannion" <[email protected]> wrote:
>
>> Hi Rob,
>>
>> Thanks for your reply. I have tried enabling the option you suggested.
>> When the import is successful, I get a series of mostly 'glGetStringi'.
>> When the import is unsuccessful, I immediately get the ContextException and
>> no debugging info appears.
>>
>> I have done a bit more investigating and it seems like the problem is
>> because 'glx_context_id' is being returned as a large negative number (e.g.
>> -181426592, -1261185472), as opposed to a large positive number when it is
>> successful. I'm not sure what this means though?
>>
>> Cheers,
>>
>> Damien.
>>
>> On Sat, Jul 11, 2015 at 8:06 PM, Rob <[email protected]> wrote:
>>
>>> Hi,
>>>
>>> You can try enabling GL tracing to see which GL calls cause errors while
>>> creating the context. Try adding the following at the start of your
>>> application:
>>>
>>> import pyglet
>>> pyglet.options['debug_gl_trace'] = True
>>>
>>> Optionally you can also add
>>> pyglet.options['debug_gl_trace_args'] = True
>>>
>>> Rob
>>>
>>> Op zaterdag 11 juli 2015 05:09:28 UTC+2 schreef [email protected]:
>>>
>>>> Hi all,
>>>>
>>>>
>>>> I'm having an intermittent problem with pyglet - importing 'pyglet.gl'
>>>> sometimes gives the following:
>>>>
>>>>
>>>> ----
>>>>
>>>> Traceback (most recent call last):
>>>>   File "<string>", line 1, in <module>
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/gl/__init__.py",
>>>>  line 236, in <module>
>>>>     import pyglet.window
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/window/__init__.py",
>>>>  line 1817, in <module>
>>>>     gl._create_shadow_window()
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/gl/__init__.py",
>>>>  line 205, in _create_shadow_window
>>>>     _shadow_window = Window(width=1, height=1, visible=False)
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/window/xlib/__init__.py",
>>>>  line 166, in __init__
>>>>     super(XlibWindow, self).__init__(*args, **kwargs)
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/window/__init__.py",
>>>>  line 516, in __init__
>>>>     context = config.create_context(gl.current_context)
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/gl/xlib.py",
>>>>  line 186, in create_context
>>>>     return XlibContextARB(self, share)
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/gl/xlib.py",
>>>>  line 300, in __init__
>>>>     super(XlibContext13, self).__init__(config, share)
>>>>   File 
>>>> "/home/damien/venv/pyglet_test/lib/python2.7/site-packages/pyglet/gl/xlib.py",
>>>>  line 203, in __init__
>>>>     raise gl.ContextException('Could not create GL context')
>>>> pyglet.gl.ContextException: Could not create GL context
>>>> ----
>>>>
>>>> It doesn't happen every time - seems to be about 50% (but not in any
>>>> discernable sequence). It occurs across multiple computers with the same
>>>> Nvidia card, but not on my laptop with an (older) ATI card.
>>>>
>>>>
>>>> This is on linux (Arch) with nvidia drivers. My video card is 'NVIDIA
>>>> Corporation GK107 [GeForce GTX 650] (rev a1)'. My version of pyglet is
>>>> '1.2.3' (installed via pip) in an otherwise clean virtualenv. It is
>>>> reasonably new behaviour - it has been working fine up until the last month
>>>> or so.
>>>>
>>>>
>>>> Does anyone have any ideas on what might be going on, or how to get
>>>> more information on the error?
>>>>
>>>>
>>>> Thanks!
>>>>
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