Category Archives: Tips and tricks

User not in netdev group

The issue of the user not being  in netdev group appeared in PostX Gnu/Linux 0.5. The user that gets created during the installation ends up not having the rights to use wicd after the  installation. Luckily, this is very easy to fix: Open terminal and execute:

sudo gpasswd -a username netdev

Replace username with your actual username. After this you should be able to run wicd without an issue.

PyQt5 issue with GLX and EGL

During PostX Gnu/Linux RC2, I hit the following issue with RunIT-QT Browser.

QOpenGLWidget: Failed to create context
QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled
QOpenGLWidget: Failed to create context
QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled
QOpenGLWidget: Failed to create context
composeAndFlush: makeCurrent() failed Continue reading

Search files with apt-file

Here is a quick tip if you ever need to find out, which Debian package has the file x or y.

To find your files you can use apt-file. First, install it. Then update apt-file caches – so it can go through files and search:

sudo apt-get -y install apt-file

sudo apt-file update

And finally search a file. Let´s say that I want to see, where is the file called something.json.

sudo apt-file search something.json

The above command will take a little while and if all goes well you should have your results when the command is complete.