Changing the screen resolution in Hyper-V virtual machines running Linux OS turns to be a well known problem. Moreover, depending on the guest OS, the solution is different. We’ve already demonstrated how to change the screen resolution in CentOS and Red Hat Hyper-V Virtual Machines in the following video ,

In this short video, we demonstrate how to change the screen resolution in Ubuntu Hyper-V Virtual Machines. For your convenience, we provide the commands that we are using in the video:

# Use "sudoedit" to modify the "/etc/default/grub" file

# for the Microsoft Hyper-V Synthetic Video Frame Buffer driver

sudoedit /etc/default/grub

# Modify the "GRUB_CMDLINE_LINUX_DEFAULT" line passing the video argument with the required resolution

# for the Microsoft Hyper-V Synthetic Video Frame Buffer driver

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1024x768"

# Apply the changes to the grub.cfg

sudo update-grub

# A reboot is required to apply the changes:

reboot

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