Modified from the original poster Benjamin Armstrong at the following address on 2014-11-09:
- Open Terminal
- Type: sudo nano /etc/default/grub
- Find the line starting with
GRUB_CMDLINE_LINUX_DEFAULT, and add
video=hyperv_fb:[the resolution you want]. The resolution I want is 1440x900. So my line ends up looking like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1440x900"
Write the changes and quit nano by pressing CTRL-O followed by enter to output the changed to the same file and then CTRL-X to exit.
Run: sudo update-grub
Reboot the virtual machine