Linux

Ubuntu Screen Resolution Problem in Hyper-V

You have just installed Ubuntu Desktop in Hyper-V, and you cannot increase the screen resolution. This article resolves this issue.

Leslie Tshuma

Dec 3, 2023 — 1 min read

Have you had that experience where you boot your newly installed ubuntu VM in Hyper-V, only to see it come up as a tiny square in the middle of your screen? It is not a pleasant experience to see the VM not defaulting, but also being stuck into the 1024 x 768px screen resolution. In this video, I show you how to resolve this issue with a fix that allows one to set their Ubuntu Desktop VM to the host computer's monitor screen resolution.

Edit grub using the Nano text editor

sudo nano /etc/default/grub

Find the line that has this content

GRUB_CMDLINE_LINUX="quiet splash"

Change it to the following state

Add " video=hyperv_fb:1920x1080" to the end of the line. Feel free to replace "1920x1080" with your preferred screen resolution. If you have a 4K monitor, please use "3840x2160" and then let me know how it looks.

GRUB_CMDLINE_LINUX="quiet splash video=hyperv_fb:1920x1080"

Update Grub

sudo update-grub

Restart the virtual machine

sudo reboot now

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