Forum: GNU Radio Unable to use constellation block

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B29a2d7f7bc0e41d7a8322689ff76e68?d=identicon&s=25 Sandhya G. (sandhya_g)
on 2013-12-20 10:34
(Received via mailing list)
*Hi everyone,*

*I installed gnuradio using binary packages  provided by ETTUS RESEARCH

*         I installed gnuradio and processor Im using is intel
*Everything installed with no issues but when  using constellation
Im facing the some problem and below is the error *

 File "/home/sandhya/", line 16, in <module>
    from gnuradio.wxgui import constsink_gl
  File "/usr/lib/python2.7/dist-
packages/gnuradio/wxgui/", line 25, in <module>
    import const_window
line 25, in <module>
    import plotter
22, in <module>
    from channel_plotter import channel_plotter
line 23, in <module>
    from grid_plotter_base import grid_plotter_base
line 24, in <module>
    from OpenGL import GL
  File "/usr/lib/pymodules/python2.7/OpenGL/GL/", line 11, in
    from OpenGL.GL.VERSION.GL_1_2 import *
ImportError: No module named VERSION.GL_1_2

*Checking out the previous thread I found two solutions*

"First, you can probably install python-opengl on your system. Or you
turn of GL support by editing the file in (probably)
d/gr-wxgui.conf and change the 'style = auto' option to 'style = nongl"

*But either of the two solutions are working and throwing me the same

*Anyone can help me on this *

Tom Rondeau (Guest)
on 2013-12-20 20:25
(Received via mailing list)
On Fri, Dec 20, 2013 at 4:33 AM, Sandhya G <>

> 22, in <module>
> <module>
The constellation sink does not have a non-OpenGL version, so you have
have OpenGL support (software and hardware). I'm guessing there is
something more you need to do to get opengl on your system.

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