In our case downgrade the microcode don't work, instead of that we noticed that our kernel was outdated: uname -r 4.15.0-51-generic so we upgrade the kernel to the recent version with:
sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04 with that the kernel was upgraded to: 4.18.0-21-generic and ubuntu start correctly -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829620 Title: intel-microcode on ASUS makes kernel stuck during loading initramfs on bionic-updates, bionic-security To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1829620/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs