Kai-Heng, yes the root was ZFS, but it's not anymore. I have reinstalled using btrfs on root and the latest kernel (5.10). The lockups have stopped occurring.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901894 Title: One or more monitors turns off but system usable until monitor orientation change To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1901894/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
