# Lyx missing parenthesis glyphs

When I try to insert parentheses in Lyx, this is the dialog I get:

The glyphs for the different kinds of parentheses are missing. Any idea of how I can fix this?

• You can just replace the delimiter after the \left and \right. For example: \left( \right), \left[ \right], \left\{ \right\}. Notice the extra  on the third example. Dec 26 '17 at 19:38
• @PhelypeOleinik No, you can't do that in LyX. Dec 26 '17 at 20:52

Turns out I was missing the fonts-lyx package. Under Ubuntu, fix with:
sudo apt install fonts-lyx