Re: [Discuss-gnuradio] gnuradio-next -- GRC FFT -- OpenGL Persistence Crash

[Josh Blum]

On 10/21/2011 01:52 PM, Ben Hilburn wrote:
> Hey all -
> 
> I'm using gnuradio-next (testing CMake and such).  If I use the OpenGL FFT
> in GRC, and click the "Persistence" checkbox, the flowgraph crashes and
> spits this out:
> 

I have never owned a machine where that persistence option worked for
me. I think its a non standard thing thats only implemented on some of
the hardware.

-josh

> File "/usr/lib/python2.7/site-packages/OpenGL/error.py", line 208, in
> glCheckError
>     baseOperation = baseOperation,
> OpenGL.error.GLError: GLError(
> err = 1282,
>  description = 'invalid operation',
> baseOperation = glAccum,
> cArguments = (GL_LOAD, 1.0)
> )
> 
> If I don't use OpenGL, the persistence feature works just fine.  Has anyone
> else seen this error before?
> 
> My setup:
> linux; GNU C++ version 4.6.1 20110819 (prerelease); Boost_104700;
> UHD_003.003.000-13899cd
> Python 2.7
> GNURadio next branch, commit: 882089131a00da24
> python-opengl 3.0.1-2
> 
> Cheers,
> Ben
> 
> 
> 
> 
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