I can confirm the kernel in groovy-proposed fixes this issue: # enable proposed cat <<EOF >/etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list # Enable Ubuntu proposed archive deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe EOF
# pin so packages are not automatically upgraded from -proposed cat <<EOF >/etc/apt/preferences.d/proposed-updates # Configure apt to allow selective installs of packages from proposed Package: * Pin: release a=$(lsb_release -cs)-proposed Pin-Priority: 400 EOF # install kernel from proposed apt install linux-generic-hwe-20.04/groovy-proposed linux-headers-generic-hwe-20.04/groovy-proposed # ensure "quiet splash" is still set in /etc/default/grub grep quiet\ splash /etc/default/grub reboot # then I notice boot does not hang anymore with thunderbolt dock connected - \o/ ** Tags removed: verification-needed-groovy ** Tags added: verification-done-groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1902469 Title: drm/i915/dp_mst - System would hang during the boot up. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1902469/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
