Unable to use WX widgets

Hi everyone ,
I installed gnuradio by binaries provided by Ettus R. in
ubuntu software centre.
Everything installed properly and I got gnuradio-companion but whenever
I
run flowgraph I get these warnings

Warning: Block key “blocks_ctrlport_monitor_performance” not found when
loading category tree.
Warning: Block key “blocks_ctrlport_monitor_performance” not found when
loading category tree

and

Using Volk machine: sse4_2_32
Volk warning: no arch found, returning generic impl

I’m using ubuntu 12.04 i3 64bit processor.

I’m not getting any waveforms in WX-GUI scope sink . When I run the
flowgraph using WX-GUI scope sink all I can see is a simple lines
varying
up and down.

Can somebody help me !!!

Thanks in advance
Sandhya

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Hi,
these are warnings, and you won’t be able to use
ctrlport.monitor_performance, but this is not a problem as is.
The Volk warning is just telling you that it’s falling back to a safe
implementation, which could be slower in some cases, but will surely
work.
To explicitely say it: a warning is a warning that things might go
wrong. It is not an error. In most cases, one should not heed it too
much, unless it seems to be related to the problem at hand.

I think you’re seeing a single line jumping up and down, and that is
what your data looks like to the wxgui sink.
Try using a larger value for t/s, the < > buttons on the upper button
row on the very left.
Also make sure you’re not clogging your CPU with work. If you don’t
have a hardware device setting the the sample rate (e.g. a USRP, a
sound card) in your flowgraph, consider simulating that using a
throttle block.

Greetings
Marcus

On 20.12.2013 08:16, Sandhya G wrote:

and
Can somebody help me !!!

Thanks in advance Sandhya

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Thanks marcus .
well all these days I was using live usb where I was getting different
(eg sine wave ) kind of output when I was using WX-GUI scope sink so I
thought it would be missing some package so I wasn’t able to see that
output .

well thanks …

well i’m running into new problem using constellation block .
File “/home/sandhya/top_block.py”, line 16, in
from gnuradio.wxgui import constsink_gl
File
“/usr/lib/python2.7/dist-packages/gnuradio/wxgui/constsink_gl.py”,
line 25, in
import const_window
File
“/usr/lib/python2.7/dist-packages/gnuradio/wxgui/const_window.py”,
line 25, in
import plotter
File
“/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/init.py”,
line
22, in
from channel_plotter import channel_plotter
File
“/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/channel_plotter.py”,
line 23, in
from grid_plotter_base import grid_plotter_base
File
“/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/grid_plotter_base.py”,
line 24, in
from OpenGL import GL
File “/usr/lib/pymodules/python2.7/OpenGL/GL/init.py”, 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
can
turn of GL support by editing the file in (probably)
/usr/local/etc/gnuradio/conf.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
error.

Anyone can help me on this

Thanks
Sandhya