I recently DL zesty and installed in Win10 Hyper-V and added virtual video card. I also installed linux-image-extra-virtual. When I followed the canonical instructions for adding a hyperv_fb: resolution and updated grub, the video resolution does not change after rebooting. Using lsmod shows lots of hyperv items loaded, but not hyperf_fb.
How do I (do I need to?) get the hyperv_fb/linux-image-extra-virtual component loaded during boot?