Public bug reported: After the upgrade from 18.04 to 18.10, SDDM fails to start. This happens with kernel 4.18.0-10 and 4.15.0-36 (it was the chance to discover grub-reboot) See SDDM crash file attached.
The machine is a virtual machine, and PCI devices use virtio-pci driver for example. I looked into /var/log/Xorg.0.log and found many error messages, the first one being : (EE) open /dev/dri/card0: No such file or directory See Xorg log file and crash file attached. Then I looked at the output of 'lspci -vvnn' and it seems that no kernel driver manages the VGA Controller. See output of 'lspci -vvnn' attached According to the following message, the missing kernel driver may be : bochs-drm or virtio-vga https://www.redhat.com/archives/libvir-list/2015-August/msg00220.html # lsb_release -rd Description: Ubuntu 18.10 Release: 18.10 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: bot-comment ** Attachment added: "_usr_bin_sddm.0.crash" https://bugs.launchpad.net/bugs/1802950/+attachment/5211912/+files/_usr_bin_sddm.0.crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802950 Title: X.org crashes after upgrade to 18.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1802950/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
