Hi Martin, Could you please test if the problem still happens with the latest kernel version in focal-proposed? (currently 5.4.0-40-generic)
Something along these lines, $ echo 'deb http://archive.ubuntu.com/ubuntu bionic-proposed main restricted' | sudo tee /etc/apt/sources.list.d/proposed.list $ sudo apt update $ sudo apt install linux-generic $ sudo rm /etc/apt/sources.list.d/proposed.list And reboot. You can confirm the running kernel version with: $ uname -rv Reference: https://wiki.ubuntu.com/Testing/EnableProposed Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885031 Title: supervisor write access in kernel mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1885031/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs