I wonder if there's a race happening (hence intermittent) and sometimes the disk unlock prompt wants to render before the amdgpu driver is available and before the timeout that would switch it to SimpleDRM automatically. Try adding kernel parameter:
plymouth.use-simpledrm to /etc/default/grub (like GRUB_CMDLINE_LINUX="plymouth.use-simpledrm") and then run: sudo update-grub and reboot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2083299 Title: Ubuntu 24.04: Occasionally screen stays black while booting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2083299/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
