Docker container use question
nickterry opened this issue · 3 comments
I created a VM running Kubuntu 18.04.4, installed docker and the LoRa decoder docker container.
Running ./lora_receive_file_nogui.py produces the expected results from the downloaded file.
I would now like to try decoding off air using my NESDR Mini 2+ dongle:
The Linux host sees the dongle:
[ 759.013692] usb 1-7: Product: RTL2838UHIDIR
[ 759.013692] usb 1-7: Manufacturer: Realtek
[ 759.013693] usb 1-7: SerialNumber: 00000001
[ 759.323729] usb 1-7: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
However, I am unsure how to configure the software in the container to use this dongle. Attempts to run any of the scripts results in an error (e.g.):
[root@84dcc5275ba8 apps]# sudo ./lora_receive_file.py
/usr/lib/python2.7/site-packages/wx-3.0-gtk3/wx/_core.py:16629: UserWarning: wxPython/wxWidgets release number mismatch
warnings.warn("wxPython/wxWidgets release number mismatch")
Unable to access the X Display, is $DISPLAY set properly?
Any help to get this running would be much appreciated.
Thanks
Hi! To run GUI applications in Docker, you need to pass some extra parameters to your docker run command. See http://fabiorehm.com/blog/2014/09/11/running-gui-apps-with-docker/ for an example.
Thanks for following up. Based on that article and some further research I tried the simplest option of "$ xhost +" in the the host machine before starting the container. Now when I run "$ sudo ./lora_receive_realtime.py" I make more progress. Some of the UI is presented and I can see that there is activity on the SDR dongle. BUT, I get a lot of "WARNING" and "CRITICAL" messages while the UI is booting and I suspect lots of the UI are just missing e.g.:
[root@kbuntu-vm apps]# sudo ./lora_receive_realtime.py
/usr/lib/python2.7/site-packages/wx-3.0-gtk3/wx/_core.py:16629: UserWarning: wxPython/wxWidgets release number mismatch
warnings.warn("wxPython/wxWidgets release number mismatch")
linux; GNU C++ version 7.2.1 20171224; Boost_106600; UHD_003.010.002.000-0-unknown
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
gr-osmosdr 0.1.4 (0.1.4) gnuradio 3.7.11
built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace airspy
Using device #0 Realtek RTL2838UHIDIR SN: 00000001
Detached kernel driver
Found Rafael Micro R820T tuner
Exact sample rate is: 1000000.026491 Hz
Bits (nominal) per symbol: 5.5
Bins per symbol: 2048
Samples per symbol: 16384
Decimation: 8
/root/.gnuradio/prefs/vmcircbuf_default_factory: No such file or directory
vmcircbuf_createfilemapping: createfilemapping is not available
(lora_receive_realtime.py:8): Gtk-WARNING **: for_size smaller than min-size (6 < 14) while measuring gadget (node check, owner GtkCheckButton)
(lora_receive_realtime.py:8): Gtk-CRITICAL **: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkCheckButton
I was hoping that Docker would make the process of getting started somewhat easier. I'd welcome any further insight you can offer to get this useful tool running.
Thanks
[root@84dcc5275ba8 apps]# sudo ./lora_receive_file.py
/usr/lib/python2.7/site-packages/wx-3.0-gtk3/wx/_core.py:16629: UserWarning: wxPython/wxWidgets release number mismatch
warnings.warn("wxPython/wxWidgets release number mismatch")
Unable to access the X Display, is $DISPLAY set properly?
I am facing the same error; would you be kind enough to assist me, please?