Resolved!
I changed the ppa directory of the video drivers, and updated the mesa and the vulkan, I noticed that there was an update of the video drivers, then I updated the retropie. Thank you all.
Resolved the issue, and PS2 appears in the EmulationStation frontend.
.bash_history doesn't show any evidence of the desktop environment being removed - by way of shell command.
The author showed interest in it and bought a book for this purpose, but development hasn't started yet. That's why i said in https://www.libretro.com/index.php/kronos-1-7-0-new-renderer/ that it was added on the roadmap but to not ask for an ETA, at the very least don't expect anything this year.
@mitu
Thanks.
Though I find it hard to believe I'm the only one wanting to use a x86 machine but with the same user experience as RetroPie on a Rpi.
So no desktop just plain retro gaming, seamingless. I can't find any good tutorial on this. Makes me wanna go back to my Rpi...
Problem with the Rpi is that it isn't powerful enough to Run Dreamcast and GameCube games.
@mitu Alright! Then I will wait until the Scraper problem is fixed. The autostart is already implemented in the retropie programm. Just need to go to the retropie setup and set the autostart option to enable.
My Retropie is now starting automatically. When I quit Retropie, I have my normal Ubuntu Desktop.
@NeoDude Not a mistake, but it seems something is missing. Do you have OpenGL acceleration working ?
Have you used Ubuntu's installer or did you manually install the driver ? I'd recommend using the Ubuntu's PPA packages to install the drivers or the Ubuntu package management app (Software center ?).
@cookiepanda Can you get the ~/.emulationstation/es_log.txt file and upload it to pastebin.com to take a look ? Has the installation been performed successfully or there were errors during installation ?