Reinstall of plymouth also made the trick. However, I still don't understand why plymouth didn't work after 9.10->10.4 upgrade without reinstall.
-- No plymouth graphical boot on Intel GPU https://bugs.launchpad.net/bugs/571678 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs