Re:

[Martin Braun]

What's wrong with the layout?

You can probably ignore the GTK warnings. The flowgraph itself is run in QT.

--M

On Fri, Nov 6, 2020 at 8:07 PM <joao@phygitall.rio> wrote:

Hello,

I am new to gnu radio. I installed it in Ubuntu 20.04 through PPA (http://ppa.launchpad.net/gnuradio/gnuradio-releases/ubuntu). The version installed is 3.8.2.0 (Python 3.8.5).

Every time I execute a flow graph I receive the following warnings in the grc terminal.

##### Start of the grc log #####

<<< Welcome to GNU Radio Companion 3.8.2.0 >>>

Block paths:

/usr/share/gnuradio/grc/blocks

Loading: "/home/joao/Downloads/gnuradio/tutorial_two_3.grc"

>>> Done

Generating: '/home/joao/Downloads/gnuradio/tutorial_two_3.py'

Executing: /usr/bin/python3 -u /home/joao/Downloads/gnuradio/tutorial_two_3.py

(python3:22390): Gtk-WARNING **: 11:09:32.062: GTK+ module /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libgail.so cannot be loaded.

GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.

Gtk-Message: 11:09:32.062: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

(python3:22390): Gtk-WARNING **: 11:09:32.174: GTK+ module /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.

GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.

Gtk-Message: 11:09:32.174: Failed to load module "canberra-gtk-module"

(python3:22390): Gtk-WARNING **: 11:09:32.174: GTK+ module /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libgail.so cannot be loaded.

GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.

Gtk-Message: 11:09:32.174: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

(python3:22390): Gtk-WARNING **: 11:09:32.175: GTK+ module /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.

GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.

Gtk-Message: 11:09:32.175: Failed to load module "canberra-gtk-module"

(python3:22390): Gtk-WARNING **: 11:09:32.175: GTK+ module /usr/lib/x86_64-linux-gnu/gtk-2.0/modules/libgail.so cannot be loaded.

GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.

Gtk-Message: 11:09:32.175: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

##### End of the grc log #####

The print screen of the flow graph is in the tutorial_two_3.png file. It is the example that exists in the "A More Complex Flowgraph" section in https://wiki.gnuradio.org/index.php/Guided_Tutorial_GRC.

The tutorial_two.png file shows the gui obtained when the flow graph is run. The GUI layout is not correct and I think it could be related to the above warnings.

Is there something I can do to solve this issue? or is this a bug?

Thanks a lot!

João