Ubuntu 16.04.1 LTS plymouth blank splash screen on Windows 10 Hyper-V

Hi,

I installed an Ubuntu 16.04.1 server edition to Windows 10 Hyper-V.

Just after installing I used this configuration on /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and updated grub by running update-grub2

In the next boot of the appliance I just get a blank screen forever, the prompt for login doesn't appear. I tried video=uvesafb and video=hyperv_fb with no consistent luck, rarely the splash screen appears briefly and the boot ends. By enabling plymouth:debug on kernel boot it seems that is something related with fb, but not sure where is the problem

Any help appreciated,