Bonjour,
I’ve been using the powerdot class in LyX for years without a glitch, including in my presentations pictures with a large diversity of format (including jpg, png, pdf, …). Please note that powerdot can NOT be used with pdflatex, and MUST go through ps2pdf (i.e., with a dvi step somewhere). I’m running into difficulties after a recent update: * Mac OSX 10.14.2 (Mojave) * LyX 2.3.2 * TeXLive-2018 * ImageMagick and many tools installed with MacPort. I include some jpeg images into my presentation, and now get the message (note: translated from French by myself): « no information to convert jpg files to eps - define a converter in preferences » . After a second try, I sometime do not get this message, but a LaTeX error: « LaTeX Error: Cannot determine size of graphic in ... » I did add a converter in preferences: « convert $$o $$i », without success. If I convert « by hand » in a shell (convert toto.jpg toto.eps), then use the eps file in LyX everything is fine. What am I missing? Thank you. Jacques