Exacly the same issue on same Dell 3593, issue persist also on Linux Mint 20.04 (guess because it is based on Ubunu 20.04). Latest kernel.
Sometimes solved by enabling / disabling secure boot. Other times boot order Ubuntu/SSD, SSD/Ubuntu, unchecking SSD. Using recover kernel 5.40 mode/update grub. On reboot it works every time. On shut down....sometimes does not load OS after day/two or 4/5 days. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883785 Title: intermittent boot failure dell inspiron 3593 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1883785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
