Hi Mike, On 11/02/2020 21.38, Mike Gilmer wrote: > I installed gnuradio on Fedora 5.4.17-200.fc31.x86_64 using sudo dnf > install gnuradio
The gnuradio's version in Fedora 31 is 3.7.13.5-6.fc31.x86_64 and 5.4.17-200 is the version of the Linux kernel. You can find the newer version 3.8 in the COPR repository https://wiki.gnuradio.org/index.php/InstallingGR#Fedora_COPR_Installation > Afterwards when I attempt to run gnuradio-companion (typing > gnuradio-companion in a terminal) I see several errors at start up > Warning: restarting the docstring loader (crashed while loading > 'qtgui_bercurve_sink') > Warning: restarting the docstring loader (crashed while loading > 'qtgui_const_sink_x') > Warning: restarting the docstring loader (crashed while loading > 'qtgui_edit_box_msg') > Warning: restarting the docstring loader (crashed while loading > 'qtgui_freq_sink_x') > Warning: restarting the docstring loader (crashed while loading > 'qtgui_histogram_sink_x') The Fedora official package does not provide these QT GUI blocks, actually it does not provide any QT blocks. The most probable reason is that Qt4 was removed from Fedora 31 and gnruadio 3.7 still uses Qt4. How did you installed these blocks? > Warning: docstring loader crashed too often > > The gnuradio GUI opens up but using QT widgets causes a seg fault. Can you take a backtrace? First install the needed tools and debuginfo packages sudo dnf install dnf-utils gdb sudo debuginfo-install python3 gnuradio then run gdb -ex run -ex bt --args /usr/bin/python2 /usr/bin/gnuradio-companion do whatever is needed to reproduce the segmentation fault and then provide the gdb output from your terminal. Regards, Vasil
