Can you not try the QT sinks?
If you want to stick with wxgui,
You can try the old trick of disabling OpenGL. Make and edit
~/.gnuradio/config.conf and add the lines:

[wxgui]
style = nongl

Method courtesy of Tom,
http://lists.gnu.org/archive/html//discuss-gnuradio/2013-07/msg00426.html.

Greetings,
Marcus
On 03/18/2015 03:56 PM, NIKOS BIZANIS wrote:
> Well I made some tests and I can verify that there seems to be nothing
> wrong with OpenGL in my VM, so I don't have a clue why I can't see any
> results.
>
> ------------------------------------------------------------------------
> *From:* [email protected]
> [[email protected]] on
> behalf of Marcus Müller [[email protected]]
> *Sent:* Wednesday, March 18, 2015 3:44 PM
> *To:* [email protected]
> *Subject:* Re: [Discuss-gnuradio] Run-time error while executing a
> simple flowgraph in GNU Radio companion
>
> Hm, then the empty window usually indicates there's not enough samples
> that have reached your graphical sink at all, *or* there's something
> odd with OpenGL in your VM.
>
>
> On 03/18/2015 02:41 PM, NIKOS BIZANIS wrote:
>> No I am running it in my machine, using a VM in VMWare player.
>>
>> Greetings,
>> Nikos
>>
>>
>> ------------------------------------------------------------------------
>> *From:* [email protected]
>> [[email protected]] on
>> behalf of NIKOS BIZANIS [[email protected]]
>> *Sent:* Wednesday, March 18, 2015 2:38 PM
>> *To:* [email protected]
>> *Subject:* Re: [Discuss-gnuradio] Run-time error while executing a
>> simple flowgraph in GNU Radio companion
>>
>> Yes, that was the reason I was getting the run-time error. I did set
>> the build options to WX GUI in the options block (it was set to QT
>> GUI) previously, and now it runs. The problem is that when the window
>> opens I can't see any FFT plot, it is just a blank window, and I get
>> the message:
>>
>> Warning: failed to XInitThreads()
>> Using Volk machine: avx_32_mmx
>>
>> Greetings,
>> Nikos
>>
>> ------------------------------------------------------------------------
>> *From:* [email protected]
>> [[email protected]] on
>> behalf of Marcus Müller [[email protected]]
>> *Sent:* Wednesday, March 18, 2015 2:31 PM
>> *To:* [email protected]
>> *Subject:* Re: [Discuss-gnuradio] Run-time error while executing a
>> simple flowgraph in GNU Radio companion
>>
>> That is a good sign! This looks like you're using WX widgets, but you
>> haven't set the build options to WX GUI (could be "No GUI" or "QT
>> GUI") in the options block in your GRC flow graph.
>>
>> Greetings,
>> Marcus
>>
>> On 03/18/2015 01:25 PM, NIKOS BIZANIS wrote:
>>> After running ldconfig I still get an error, but a somewhat
>>> different one:
>>>
>>> Warning: failed to XInitThreads()
>>> Traceback (most recent call last):
>>>   File "/home/nikos/top_block.py", line 105, in <module>
>>>     tb = top_block()
>>>   File "/home/nikos/top_block.py", line 56, in __init__
>>>     self.GetWin(),
>>>   File
>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/hier_block2.py",
>>> line 93, in __getattr__
>>>     return getattr(self._impl, name)
>>> AttributeError: 'top_block_sptr' object has no attribute 'GetWin'
>>>
>>> Is it still the case that I am missing some library, or it is
>>> installed elsewhere than it should?
>>>
>>> Thank you again,
>>> Nikos
>>>
>>>
>>> ------------------------------------------------------------------------
>>> *From:*
>>> [email protected]
>>> [[email protected]] on
>>> behalf of Marcus Müller [[email protected]]
>>> *Sent:* Wednesday, March 18, 2015 1:08 PM
>>> *To:* [email protected]
>>> *Subject:* Re: [Discuss-gnuradio] Run-time error while executing a
>>> simple flowgraph in GNU Radio companion
>>>
>>> Ah well, in that case: it seems like you've successfully installed
>>> the block definition XML files to a place GRC can find them, but
>>> that does not apply to the library you're missing now. If "sudo
>>> ldconfig" doesn't help, make sure that
>>> make install
>>>
>>> inside your gnuradio/build directory actually is successful. If you
>>> get errors about missing permissions, you might want to run the
>>> command via sudo:
>>> sudo make install
>>>
>>> You might also want to have a look at
>>> gnuradio/build/install_manifest.txt, which should list all the files
>>> that were installed. look for a line containing the library you're
>>> missing -- where did it get installed to? Where did, for example,
>>> gnuradio-companion get installed to? Is that the same as what "which
>>> gnuradio-companion" is telling you?
>>>
>>> Best regards,
>>> Marcus
>>>
>>>
>>>
>>>
>>> On 03/18/2015 01:01 PM, NIKOS BIZANIS wrote:
>>>> Hi Marcus,
>>>>
>>>> What I meant by "able to use", was that I was able to find the
>>>> blocks using the search facility and put the block to a flowgraph.
>>>> I had not actually tried to build and execute a flowgraph
>>>> containing any of these blocks, and now that I tried this was the
>>>> result.
>>>>
>>>> Greetings,
>>>> Nikos
>>>>
>>>> ------------------------------------------------------------------------
>>>> *From:*
>>>> [email protected]
>>>> [[email protected]] on
>>>> behalf of Marcus Müller [[email protected]]
>>>> *Sent:* Wednesday, March 18, 2015 12:48 PM
>>>> *To:* [email protected]
>>>> *Subject:* Re: [Discuss-gnuradio] Run-time error while executing a
>>>> simple flowgraph in GNU Radio companion
>>>>
>>>> Hi Nikos,
>>>>
>>>> you said earlier you were able to use WX widgets. Did you do
>>>> something in between that and your system now not being able to
>>>> find the libgnuradio-wxgui library?
>>>>
>>>> Greetings,
>>>> Marcus
>>>>
>>>> On 03/18/2015 12:34 PM, NIKOS BIZANIS wrote:
>>>>> Hey all,
>>>>>
>>>>> Just to start experimenting with GNU Radio and companion I just
>>>>> created a simple flowgraph consisting of a Signal Source Block and
>>>>> a WX GUI FFT Sink connected to it, to see if the diagram will be
>>>>> generated. I get a run-time error, namely:
>>>>>
>>>>> Executing: "/home/nikos/top_block.py"
>>>>>
>>>>> Traceback (most recent call last):
>>>>>   File "/home/nikos/top_block.py", line 12, in <module>
>>>>>     from gnuradio import wxgui
>>>>>   File
>>>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/__init__.py",
>>>>> line 32, in <module>
>>>>>     from wxgui_swig import *
>>>>>   File
>>>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/wxgui_swig.py",
>>>>> line 28, in <module>
>>>>>     _wxgui_swig = swig_import_helper()
>>>>>   File
>>>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/wxgui_swig.py",
>>>>> line 24, in swig_import_helper
>>>>>     _mod = imp.load_module('_wxgui_swig', fp, pathname, description)
>>>>> ImportError: libgnuradio-wxgui-3.7.6.1.so.0.0.0: cannot open
>>>>> shared object file: No such file or directory
>>>>>
>>>>> What could be wrong here?
>>>>>
>>>>> Thank you,
>>>>> Nikos
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Discuss-gnuradio mailing list
>>>>> [email protected]
>>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>>
>>>>
>>>>
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