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Subject:

Re: openGL problems

From:

Murali Vadivelu <[log in to unmask]>

Reply-To:

CcpNmr software mailing list <[log in to unmask]>

Date:

Mon, 23 Jan 2006 12:40:19 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (550 lines)

Out of curiosity, are you ssh-ing or remote logging into a system and  
running the application?

On 23 Jan 2006, at 12:00 pm, Dr Andy Herbert wrote:

> Hi,
>
> All drivers etc are now patched up to date.
>
> When using the NVidia hardware accelerated drivers:
>
> Windows open correctly without error, however when a strip is removed
> analysis crashes with the following error message:
>
>>>> GL_VENDOR = NVIDIA Corporation
> GL_RENDERER = Quadro FX 500/FX 600/AGP/SSE2
> GL_VERSION = 2.0.1 NVIDIA 81.78
> X Error of failed request:  BadMatch (invalid parameter attributes)
>   Major opcode of failed request:  144 (GLX)
>   Minor opcode of failed request:  5 (X_GLXMakeCurrent)
>   Serial number of failed request:  10600
>   Current serial number in output stream:  10600
>
>
>
> When using mesa 6.4.1:
> windows open without any contours and the following error message:
>
>>>> make_current_gl_handler failed: 0
> Problem in if (!init_gl_handler(gl_handler))
> Exception in Tkinter callback
> Traceback (most recent call last):
>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>     return self.func(*args)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2768, in resize
>     self.setupWidgetHandler(canvas, isCanvas=True)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2494, in setupWidgetHandler
>     widget.handler = self.handlerClass(widget)
> GlHandler.error: allocating Gl_handler object
> make_current_gl_handler failed: 0
> Problem in if (!init_gl_handler(gl_handler))
> Exception in Tkinter callback
> Traceback (most recent call last):
>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>     return self.func(*args)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2768, in resize
>     self.setupWidgetHandler(canvas, isCanvas=True)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2494, in setupWidgetHandler
>     widget.handler = self.handlerClass(widget)
> GlHandler.error: allocating Gl_handler object
> make_current_gl_handler failed: 0
> Problem in if (!init_gl_handler(gl_handler))
> Exception in Tkinter callback
> Traceback (most recent call last):
>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>     return self.func(*args)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2768, in resize
>     self.setupWidgetHandler(canvas, isCanvas=True)
>   File
> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
> WindowPopup.py", line 2494, in setupWidgetHandler
>     widget.handler = self.handlerClass(widget)
> GlHandler.error: allocating Gl_handler object
>
>
> analysis however doesn't crash when strips are removed.  All the other
> openGL apps I've tried work correctly with both mesa and hardware.
>
> Cheers
>
> Andy
>
>
> On Thu, 2006-01-19 at 18:55 +0000, Dr Andy Herbert wrote:
>> Hi Wayne
>>
>> I hope this error message means more to you than me!
>>
>>>>> make_current_gl_handler failed: 0
>> Problem in if (!init_gl_handler(gl_handler))
>> Exception in Tkinter callback
>> Traceback (most recent call last):
>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>>     return self.func(*args)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2768, in resize
>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2494, in setupWidgetHandler
>>     widget.handler = self.handlerClass(widget)
>> GlHandler.error: allocating Gl_handler object
>> make_current_gl_handler failed: 0
>> Problem in if (!init_gl_handler(gl_handler))
>> Exception in Tkinter callback
>> Traceback (most recent call last):
>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>>     return self.func(*args)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2768, in resize
>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2494, in setupWidgetHandler
>>     widget.handler = self.handlerClass(widget)
>> GlHandler.error: allocating Gl_handler object
>> make_current_gl_handler failed: 0
>> Problem in if (!init_gl_handler(gl_handler))
>> Exception in Tkinter callback
>> Traceback (most recent call last):
>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
>>     return self.func(*args)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2768, in resize
>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>   File
>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>> WindowPopup.py", line 2494, in setupWidgetHandler
>>     widget.handler = self.handlerClass(widget)
>> GlHandler.error: allocating Gl_handler object
>>
>>
>> Cheers
>>
>> Andy
>>
>> On Thu, 2006-01-19 at 18:12 +0000, Wayne Boucher wrote:
>>> Right, I think the only way for it to have failed there is for
>>> make_current_gl_handler() to have failed.  And I've not known  
>>> that to fail
>>> (except silently, i.e. it fails but says it has not failed, in  
>>> which case
>>> GL crashes).  So this is a puzzle.  Now in make_current_gl_handler 
>>> () there
>>> are the lines:
>>>
>>>     if (!ok || !(glGetError() == GL_NO_ERROR))
>>>       return CCPN_FALSE;
>>>
>>> you could change that to:
>>>
>>>     if (!ok)  /* removed glGetError() */
>>>     {
>>>       printf("make_current_gl_handler failed: %d\n", glGetError());
>>>       return CCPN_FALSE;
>>>     }
>>>
>>> and see if it works (re-compile as usual in ccpnmr1.0/c).  If  
>>> that fails
>>> (and it probably will) then we are probably stuffed.  But it  
>>> would be
>>> interesting to know what the error code is.  (I'll have to try  
>>> and find
>>> where that information is stored, what they mean.)
>>>
>>> Wayne
>>>
>>> On Thu, 19 Jan 2006, Dr Andy Herbert wrote:
>>>
>>>> Hi,
>>>>
>>>> I modified gl_handler.c as described, including the following  
>>>> amongst
>>>> others:
>>>>
>>>>     if (!init_gl_handler(gl_handler))
>>>>     {
>>>>       FREE(gl_handler_p, struct Gl_handler_p);
>>>>       printf("Problem in if (!init_gl_handler(gl_handler))\n");
>>>>
>>>>       return NULL;
>>>>     }
>>>>
>>>> This is where the printf function is printed:
>>>>
>>>>>>> Problem in if (!init_gl_handler(gl_handler))
>>>> Exception in Tkinter callback
>>>> Traceback (most recent call last):
>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>> __call__
>>>>     return self.func(*args)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2768, in resize
>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>     widget.handler = self.handlerClass(widget)
>>>> GlHandler.error: allocating Gl_handler object
>>>> Problem in if (!init_gl_handler(gl_handler))
>>>> Exception in Tkinter callback
>>>> Traceback (most recent call last):
>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>> __call__
>>>>     return self.func(*args)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2768, in resize
>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>     widget.handler = self.handlerClass(widget)
>>>> GlHandler.error: allocating Gl_handler object
>>>> Problem in if (!init_gl_handler(gl_handler))
>>>> Exception in Tkinter callback
>>>> Traceback (most recent call last):
>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>> __call__
>>>>     return self.func(*args)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2768, in resize
>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>   File
>>>> "/usr/local/ccpnmr.debug/ccpnmr/ccpnmr1.0/python/ccpnmr/analysis/ 
>>>> WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>     widget.handler = self.handlerClass(widget)
>>>> GlHandler.error: allocating Gl_handler object
>>>>
>>>>
>>>> Hope this is more useful.
>>>>
>>>> Cheers
>>>>
>>>> Andy
>>>>
>>>> On Thu, 2006-01-19 at 13:14 +0000, Wayne Boucher wrote:
>>>>> Hello,
>>>>>
>>>>> That could be one of a couple of things (unfortunately: that  
>>>>> error message
>>>>> will have to be expanded).  So the only real way to find out is  
>>>>> to go into
>>>>> the C code and put some debug statements in and then re-compile.
>>>>>
>>>>> So in ccpnmr1.0/c/memops/global/gl_handler.c in the function
>>>>> new_gl_handler() there are a few early return statements (in  
>>>>> the next
>>>>> release there will be a new one).  Put a "printf" statement in  
>>>>> to each
>>>>> one.  So for example, the first one would become:
>>>>>
>>>>>     visual = glXChooseVisual(display, DefaultScreen(display),  
>>>>> dblBuf);
>>>>>     if (!visual)
>>>>>     {
>>>>>       printf("could not find visual\n");
>>>>>       return NULL;
>>>>>     }
>>>>>
>>>>> Then re-compile (with a "make" in the ccpnmr1.0/c directory,  
>>>>> not the
>>>>> global directory) and try again.
>>>>>
>>>>> In fact, you might want to stick in the following above that  
>>>>> visual check
>>>>> (this will be in the next release):
>>>>>
>>>>>     if (!glXQueryExtension(display, &dummy, &dummy))
>>>>>     {
>>>>>       printf("GLX extension not supported\n");
>>>>>       return NULL; /* check that OpenGL's GLX extension  
>>>>> supported */
>>>>>     }
>>>>>
>>>>> with
>>>>>
>>>>>     int dummy;
>>>>>
>>>>> defined at the top of the function.  My (first) guess is that  
>>>>> maybe the
>>>>> GLX is not set up somewhere in the /etc config file, that query  
>>>>> command
>>>>> would trap that.  Alternatively it's possible the last argument to
>>>>> glXCreateContext is wrong (in the next release this will be  
>>>>> settable at
>>>>> run time but currently it is only settable at compile time).
>>>>>
>>>>> Note that if this initialisation fails you are toast, hence the  
>>>>> later
>>>>> error messages.
>>>>>
>>>>> Wayne
>>>>>
>>>>> On Thu, 19 Jan 2006, Dr Andy Herbert wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I recently needed to change the graphics card in my linux box  
>>>>>> from an
>>>>>> NVidia Geforce class to an NVidia quadro 4 type.  When using  
>>>>>> openGL
>>>>>> graphics with the bundled mesa lib analysis spits out the  
>>>>>> following
>>>>>> error message when opening a window:
>>>>>>
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2768, in resize
>>>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>>>     widget.handler = self.handlerClass(widget)
>>>>>> GlHandler.error: allocating Gl_handler object
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2768, in resize
>>>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>>>     widget.handler = self.handlerClass(widget)
>>>>>> GlHandler.error: allocating Gl_handler object
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2768, in resize
>>>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPo pup.py", line 2494, in setupWidgetHandler
>>>>>>     widget.handler = self.handlerClass(widget)
>>>>>> GlHandler.error: allocating Gl_handler object
>>>>>>
>>>>>> and the following when moving the cursor on the new window (which
>>>>>> doesn't show any spectra):
>>>>>>
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2814, in motion
>>>>>>     w = canvas.canvas_width
>>>>>> AttributeError: WindowCanvas instance has no attribute  
>>>>>> 'canvas_width'
>>>>>> Exception in Tkinter callback
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in  
>>>>>> __call__
>>>>>>     return self.func(*args)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/memops/gui/ 
>>>>>> ScrolledWindow.py", line 1333, in leave
>>>>>>     self.leave_func(event)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2925, in leave
>>>>>>     self.parent.endCrosshair()
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/AnalysisPopup.py", line 317, in endCrosshair
>>>>>>     popup.endCrosshair()
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2959, in endCrosshair
>>>>>>     self.endCanvasCrosshair(self.scrolled_window.canvases[j][i])
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2932, in endCanvasCrosshair
>>>>>>     self.setupWidgetHandler(canvas, isCanvas=True)
>>>>>>   File
>>>>>> "/usr/local/ccpnmr.1.0.8/ccpnmr/ccpnmr1.0/python/ccpnmr/ 
>>>>>> analysis/WindowPopup.py", line 2494, in setupWidgetHandler
>>>>>>     widget.handler = self.handlerClass(widget)
>>>>>> GlHandler.error: allocating Gl_handler object
>>>>>>
>>>>>>
>>>>>> This doesn't happen when I use the NVidia hardware accelerated  
>>>>>> graphics
>>>>>> drivers, however then I still get a version of the random  
>>>>>> crashing
>>>>>> reported earlier.
>>>>>>
>>>>>> Cheers
>>>>>>
>>>>>> Andy
>>>>>>
>>>>>> --
>>>>>> Dr Andy Herbert
>>>>>> Department of Chemistry
>>>>>> University of Edinburgh
>>>>>> West Mains Road
>>>>>> Edinburgh
>>>>>> UK
>>>>>> EH9 3JJ
>>>>>> Tel: +44 (0)131 650 4704 or 650 7372
>>>>>> Email: [log in to unmask]
>>>>>>
>>>> --
>>>> Dr Andy Herbert
>>>> Department of Chemistry
>>>> University of Edinburgh
>>>> West Mains Road
>>>> Edinburgh
>>>> UK
>>>> EH9 3JJ
>>>> Tel: +44 (0)131 650 4704 or 650 7372
>>>> Email: [log in to unmask]
>>>>
> -- 
> Dr Andy Herbert
> Department of Chemistry
> University of Edinburgh
> West Mains Road
> Edinburgh
> UK
> EH9 3JJ
> Tel: +44 (0)131 650 4704 or 650 7372
> Email: [log in to unmask]

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