on trying to plot any thing in ipython using matplotlib i got the following error
This application failed to start because it could not find or load the Qt platform plugin “xcb”.
Available platform plugins are: eglfs, kms, linuxfb, minimal, minimalegl, offscreen, xcb.
Reinstalling the application may fix this problem.
Aborted (core dumped)
for example the following command will produce the error
ipython -c 'import pylab; pylab.plot()'
matplotlib backend: Qt5Agg
uname -srvmo :: Linux 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:40:19 CEST 2014 x86_64 GNU/Linux
$ pacman -Q ipython python-matplotlib
ipython 2.2.0-1
python-matplotlib 1.4.0-2
solution :: install libxkbcommon-x11
Awhan Patnaik 