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[Bug 1742448] Re: Qt flowgraphs crash on ubuntu 18.04

 

** Changed in: gnuradio (Debian)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1742448

Title:
  Qt flowgraphs crash on ubuntu 18.04

Status in gnuradio package in Ubuntu:
  New
Status in gnuradio package in Debian:
  Fix Released

Bug description:
  Did a fresh Ubuntu studio 18.04 bionic install from
  http://cdimage.ubuntu.com/ubuntustudio/dvd/current/HEADER.html

  lsb_release -rd
  Description:	Ubuntu Bionic Beaver (development branch)
  Release:	18.04

  apt-cache policy gnuradio
  gnuradio:
    Installed: 3.7.11-6
    Candidate: 3.7.11-6
    Version table:
   *** 3.7.11-6 500
          500 http://nl.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
          100 /var/lib/dpkg/status


  Installed gqrx-sdr which has gnuradio as dependency.

  sudo apt-get install update
  sudo apt-get install upgrade
  sudo apt-get install gqrx-sdr
  sudo reboot

  
  Now running flowgraphs with wx-gui or no-gui works fine.
  Only when running QT-gui flowgraphs i get the following error:

  <<< Welcome to GNU Radio Companion 3.7.11 >>>

  Block paths:
  	/usr/share/gnuradio/grc/blocks

  Loading: "/home/paul/Desktop/untitled.grc"
  >>> Done

  Generating: '/home/paul/Desktop/top_block.py'

  Executing: /usr/bin/python -u /home/paul/Desktop/top_block.py

  Warning: failed to XInitThreads()
  linux; GNU C++ version 7.2.0; Boost_106501; UHD_003.010.002.000-0-unknown

  
  ** (python:7547): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-Yl2hgwWel0: Connection refused

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:597:14:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:597:14:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:600:17:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:784:14:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:784:14:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:787:17:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:1096:14:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:1096:14:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:1099:17:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:2286:8:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:2286:18:
  Using Pango syntax for the font: style property is deprecated; please
  use CSS syntax

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:2291:8:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:2291:18:
  Using Pango syntax for the font: style property is deprecated; please
  use CSS syntax

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4357:14:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4357:14:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4419:12:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4419:12:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4428:16:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4428:16:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4443:22:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4443:22:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4499:12:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4501:16:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4501:16:
  Expected a string.

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4549:12:
  not a number

  (python:7547): Gtk-WARNING **: Theme parsing error: gtk.css:4549:12: Expected a string.
  QApplication: invalid style override passed, ignoring it.
  Traceback (most recent call last):
    File "/home/paul/Desktop/top_block.py", line 123, in <module>
      main()
    File "/home/paul/Desktop/top_block.py", line 111, in main
      tb = top_block_cls()
    File "/home/paul/Desktop/top_block.py", line 57, in __init__
      self.restoreGeometry(self.settings.value("geometry").toByteArray())
  AttributeError: 'NoneType' object has no attribute 'toByteArray'

  >>> Done

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