The problem first appeared in kernel 4.8.0. It is worth noting that the boot delays are not particularly excessive with this kernel version, but increase with each subsequent version to the point of several minutes delay using 4.15.0.20.23 (18.04LTS default kernel).
** Attachment added: "dmesg from mainline kernel 4.8.0" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769421/+attachment/5136565/+files/dmesg-4.8.0-040800-generic.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769421 Title: [18.04] [Bionic]drm_kms_helper causes long delay at boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769421/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
