I will note that I've now seen references to "lyx-fonts" and "fonts-lyx" in this thread. Perhaps it is "fonts-lyx" on ubuntu, which is why it works?
On Mon, Jul 10, 2017 at 2:40 PM, LyX Ticket Tracker <t...@lyx.org> wrote: > #10637: Math mode characters strange / wrong in Linux Mint (not windows) > ----------------------+------------------------- > Reporter: jaxankey | Owner: lasgouttes > Type: defect | Status: new > Priority: normal | Milestone: > Component: font | Version: 2.2.2 > Severity: normal | Resolution: > Keywords: | > ----------------------+------------------------- > > Comment (by prubin): > > I dug a bit deeper and discovered the following. In Synaptic, if I search > for "lyx" in installed packages, I get three hits on my PC (where mathed > display works): lyx, lyx-common and fonts-lyx. On the laptop, the same > search finds lyx, lyx-common and xfonts-mathml. That last one mentions > that "[y]ou will also need ... and fonts-lyx (TeX's Computer Modern fonts) > to view MathML properly" (hence the hit in the search). I don't have > xfonts-mathml on the PC, and I have no recollection of why I installed it > on the laptop. > > Installing fonts-lyx on the laptop fixed the display problem there. I > really have no idea why it wasn't installed from Liv's PPA along with the > rest of LyX 2.2.3. > > -- > Ticket URL: <http://www.lyx.org/trac/ticket/10637#comment:6> > The LyX Project <http://www.lyx.org/> > LyX -- The Document Processor >