Slow boot times since 18.04 installation on Dell D630

I may have found a work-around; my boot time got reduced from over 4 minutes back to about 50 seconds (Wayland session) by doing:

1. sudo vi /etc/default/grub
2. I changed the GRUB_CMDLINE_LINUX_DEFAULT boot parameter to: GRUB_CMDLINE_LINUX_DEFAULT="video=SVIDEO-1:d"
3. Save and exit vi
4. sudo update-grub
5. sudo reboot

br, Koen.

Regarding the time spent loading snap packages on boot (dev-loopN.device), it is possible to replace them in Software Center with their versions from universe bionic repo instead of the pre installed versions from Snap Store. Just a few seconds can be saved, however, making real difference only if there are too many snap packages installed on your system