On Tue, Jul 30, 2019 at 03:42:45PM +0200, Haroldo Gambini Santos wrote: > Dear Pavel, > > Thank you very much for the suggestions. > > I contacted the Arch developers and discovered that there is a > third-part package that I installed that is causing the trouble: > > https://aur.archlinux.org/packages/ttf-computer-modern-fonts/
I see, that's basically bakoma fonts we include in lyx, except two glyphs are missing (\leg being one of them). If arch packaging systems allows it I would suggest they flag ttf-computer-modern-fonts and lyx as mutually exclusive packages so they do not get installed by accident at the same time. Cheers, Pavel