Plot not working ubuntu 24.04

Hello everyone, recently I update from ubuntu 22.04 to ubuntu 24.04 and the plot is not working, can i get some advice please.

Kind regards

Roberto Cabrales

Can you try the program
ffglut
exist and run !

and did you recompile freefem++

Hi, yes and yes. I try the ffglut program without any result and finallly, I decide to recompile FreeFem++ and now everything is fine. Thank your for your advice!
Kind regards.