[Discuss-gnuradio] Problem with usrp_fft.py

[Chandru Raman]

Hi all:

I am new to this group and I am GNU radios to listen to a band of
frequencies and see the spectrum by computing the FFT. The following
command

./usrp_fft.py -R B -f 1e6 >> data_fft_1_2.dat

results in the following error.. Should I have some display settings
to avoid this? And why do I get a segmentation fault?


Traceback (most recent call last):
 File "./usrp_fft.py", line 251, in ?
   main ()
 File "./usrp_fft.py", line 247, in main
   app = stdgui.stdapp(app_flow_graph, "USRP FFT", nstatus=1)
 File "/usr/local/lib/python2.4/site-packages/gnuradio/wxgui/stdgui.py",
line 36, in __init__
   wx.App.__init__ (self, redirect=False)
 File "/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode
/wx/_core.py", line 7700, in __init__
   self._BootstrapApp()
 File "/usr/lib/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py",
line 7352, in _BootstrapApp
   return _core_.PyApp__BootstrapApp(*args, **kwargs)
SystemError: wxEntryStart failed, unable to initialize wxWidgets!  (Is
DISPLAY set properly?)
Segmentation fault