This bug affected me with Ubuntu 17.04 on a Dell D630 laptop as well. I applied the workaround that was suggested on the mentioned Arch forum thread (disabling S-video). Add "video=SVIDEO-1:d" to the kernel boot options in /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=SVIDEO-1:d"
Then run "sudo update-grub" and reboot. It cut my boot time from two minutes to 40 seconds. I have no S-video connector anyway, so this works for me.
This bug affected me with Ubuntu 17.04 on a Dell D630 laptop as well. I applied the workaround that was suggested on the mentioned Arch forum thread (disabling S-video). Add "video=SVIDEO-1:d" to the kernel boot options in /etc/default/grub:
GRUB_CMDLINE_ LINUX_DEFAULT= "quiet splash video=SVIDEO-1:d"
Then run "sudo update-grub" and reboot. It cut my boot time from two minutes to 40 seconds. I have no S-video connector anyway, so this works for me.