Comment 43 for bug 1848534

BTW, my Linux kernel version is 5.3.0-46-generic #38-Ubuntu (17:37:05, 3/27/2020).

The "graphic artifact" is somehow caused by the "$vt_hanoff" kernel parameter (check "cat /proc/cmdline").
If I manually remove the "$vt_hanoff" at the grub screen, I won't see the "graphic artifact" -- Ubuntu guys should take a look and fix the issue, as I'm not familiar with "vt_handoff".

@msgallery: I never see the "1:40" (1 minutes and 40 seconds) delay reported in comment #40. Maybe you can use "systemd-analyze critical-chain" (mentioned in Comment #25) to figure out why the delay happened.

To recap, my experience with the fresh Desktop installation of Ubuntu 19.10 (Gen-2 VM) on Hyper-V is good, except for the minor "graphic artifact" issue. I don't see any long delay.