*** This bug is a duplicate of bug 1924624 *** https://bugs.launchpad.net/bugs/1924624
I downloaded the Ubuntu 20.04 iso and made a boot running from it. Everything works normal. So I deduced that the problem is in updating third parties, something broke the video driver. I did a new installation of Ubuntu 20.04 and its updates, installed my tools and lib required for my work. It's working well so far. Thank you for your attention and help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924882 Title: Random freezing of the computer during testing. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1924882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs