These are the processes that take the most of CPU time when the freeze occurs:
PID UTIL. PR NI VIRT RES SHR S %CPU %MEM TEMPS+ COM. 1294 hadrien 20 0 4718668 345296 97152 R 67,4 2,1 1:37.87 gnome-shell 2477 hadrien 20 0 2324412 423468 147072 R 18,6 2,6 0:32.11 firefox 1322 hadrien 20 0 1528076 84308 69576 S 11,6 0,5 0:16.49 Xwayland 2546 hadrien 20 0 2091172 203624 116160 R 11,6 1,2 0:19.49 Web Content 221 root 20 0 0 0 0 S 10,3 0,0 0:01.79 kworker/u16:3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749779 Title: System freeze when going back and forth fullscreen mode with Firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1749779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs