Re: [Discuss-gnuradio] opengl "persistence" error

[Arturo Rinaldi]

Il 01/04/2011 17:21, Josh Blum ha scritto:
> On 04/01/2011 07:43 AM, Arturo Rinaldi wrote:
> > Every time I tick the "Persistence" box in one of the scopes i get this
> > error :
> >
> > Traceback (most recent call last):
> >    File
> > "/usr/local/lib/python2.6/dist-packages/gnuradio/wxgui/plotter/plotter_base.py",
> > line 192, in _on_paint
> >      GL.glAccum(GL.GL_LOAD, 1.0)
> >    File "/usr/lib/pymodules/python2.6/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)
> > )
> It happens on all of my computers too. I think the persistence uses a
> hardware feature that is not widely implemented. -Josh
>
> > i have correctly installed my ati catalyst drivers on my laptop (latest
> > version). My laptop GPU is a Radeon HD4570 and my OS Ubuntu 10.10. I
> > compiled and installed from source gnuradio v. 3.3.0.
> >
> > Regards
> >
> >           Arturo Rinaldi
> >
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In fact on my nvidia GF 6800GT i have never experienced such an error. 
Maybe an nVidia cards hardware feature ?