I have to add the solution in my post #44 seems to work on my desktop, but not on my laptop: it worked for a while but then the problem appeared again. Actually, on laptop I had to update /etc/default/grub adding "noplymouth" in GRUB_CMDLINE_LINUX_DEFAULT options... (which is of course not a solution!)
I have to add the solution in my post #44 seems to work on my desktop, but not on my laptop: it worked for a while but then the problem appeared again. Actually, on laptop I had to update /etc/default/grub adding "noplymouth" in GRUB_CMDLINE_ LINUX_DEFAULT options... (which is of course not a solution!)