Bug report

Bug summary

type1ec.sty not found. I have never encountered this before v3.2.1. Standard texlive (apt install texlive-latex-extra) does not come with this (only type1cm.sty).

Code for reproduction

import numpy as np
import matplotlib
matplotlib.rcParams['pgf.texsystem'] = 'pdflatex'
matplotlib.rcParams.update({'font.family': 'serif', 'font.size': 18,
    'axes.labelsize': 20,'axes.titlesize': 24, 'figure.titlesize' : 28})
matplotlib.rcParams['text.usetex'] = True
import matplotlib.pyplot as plt

fig, ax = plt.subplots(1,1)
x = np.random.norm(0,1)
y = np.random.norm(0,2)
ax.plot(x,y, label='a label')
ax.legend(fontsize=15)

Actual outcome

Sorry for the short description,

...
type1ec.sty not found.
...

Expected outcome

Fix
on linux: apt install cm-super.

Is it now necessary to have cm-supper for plotting TeX?

Matplotlib version

• Operating system: Linux (Ubuntu 19.10)
• Matplotlib version: 3.2.1
• Matplotlib backend (print(matplotlib.get_backend())): module://ipykernel.pylab.backend_inline (seems strange to me)
• Python version: 3.7.6
• Jupyter version (if applicable): 6.0.3
• Other libraries: