Public bug reported: A few days ago, I let update-manager upgrade my kernel from 4.18.0-13 to 4.18.0-14. Since then, my system is unable to boot. It freezes after printing
fb: switching to inteldrmfb from VESA VGA but before it gets around to asking me the passphrase for my encrypted main partition. (At first I thought it was a problem with cryptsetup because it never got to that prompt, but now I'm pretty sure it's something to do with changing video mode.) However, if I use the grub menu to select the older 4.18.0-13, the system boots just fine. It looks very much like a bug introduced between 4.18.0-13 and 4.18.0-14. Additionally, if I boot 4.18.0-14 in maintenance mode, the kernel modesetting does not happen, and the system boots just fine. (Except for the 1980s-style low-res video, that is.) This seems like good evidence that it's a problem with setting the video mode. I'll test with some mainline builds, but I want to get this bug report opened before I start rebooting. ** Affects: plymouth (Ubuntu) Importance: Undecided Status: New ** Attachment added: "boot sequence hung at video mode change" https://bugs.launchpad.net/bugs/1815152/+attachment/5236891/+files/hung-kernel.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1815152 Title: kernel hangs on boot after "fb: switching to inteldrmfb from VESA VGA" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1815152/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs