I have the same problem with the French keyboard.
Murat Yildizoglu Le 15 oct. 2018 à 20:35 +0200, Rudi Gaelzer <rgael...@gmail.com>, a écrit : > Ever since LyX was upgraded to v. 2.3.1 the rendering of math superscripts > changed. > Using a ABNT (brazilian) keyboard map, which provides accents (acute, grave, > circumflex, cedilla, etc) as dead keys, up to the previous version (2.3.0), > whenever I wanted a superscript in math mode I would use the circumflex > accent key. That would have the same effect as the key-binding Alt+M E, both > in LyX math mode and in LaTeX. > Now, since v. 2.3.1 was installed, if I want to renderize $a^2$, for > instance, in LyX math, it will display literally a^2. After exiting math > mode and with instant preview active, the LaTeX rendition will display the > correct format. > > Subscripts are still rendered either with Alt+M X or with "_" (underscore), > as it was always done. > > This is not something terribly annoying, but with an ABNT keyboard it is much > faster to employ the single "^" key than pressing the 3 keys Alt + M + E. > > -- > Rudi Gaelzer > Institute of Physics > Federal University of Rio Grande do Sul > BRAZIL > Registered linux user # 153741