Hot answers tagged qt
By default qt5 used xft instead of fontconfig how it was in qt4 version: https://bugreports.qt-project.org/browse/QTBUG-27106. Infinality patch is fix that for me. Install infinality font patch: sudo add-apt-repository ppa:no1wantdthisname/ppa sudo apt-get update sudo apt-get upgrade sudo apt-get install fontconfig-infinality Configure font config: ...
Ah, as @steeldriver points out, headers and libraries are different things, and doing the following fixed the issue: sudo apt-get install mesa-common-dev This installs the required headers.
I was able to resolve this issue by removing my matplotlib font cache (both the Python 3 and Python 2 font caches), e.g., rm /home/arthur/.cache/matplotlib/fontList*.cache I can now use any other following environment initializations without errors: ipython3 --pylab ipython3 --matplotlib tk ipython3 --matplotlib qt4
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