Ubuntu 20.04 Full Screen Mode Resolution in Hyper-V is very small

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Solution 1

The xrdp.service is not starting because the address already in use. There is an issue about this on github.

To solve this:

First, get the scripts from GitHub:

sudo apt-get update
sudo apt install git
git clone https://github.com/Microsoft/linux-vm-tools.git ~/linux-vm-tools
cd ~/linux-vm-tools/ubuntu/18.04/

Then, make the scripts executable and run them...

sudo chmod +x install.sh
sudo ./install.sh
sudo reboot
cd ~/linux-vm-tools/ubuntu/18.04/
sudo ./install.sh
sudo systemctl enable xrdp.service

Open /etc/xrdp/xrdp.ini for editing:

sudo gedit /etc/xrdp/xrdp.ini   

add these two lines (or change them if present):

port=vsock://-1:3389
use_vsock=false

restart the service and system:

sudo xrdp restart
sudo shutdown -h 0

On Windows Powershell with Admin Privileges, run the command:

Set-VM -VMName <your_vm_name>  -EnhancedSessionTransportType HvSocket  

This solution is adapted from the Microsoft Tech Community and a post on medium.com

Solution 2

You can use these steps:

  • Edit Grub

     sudo vi /etc/default/grub
    

    to modify the resolution during boot

  • Modify

     GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1920x1080"
    
  • Modify

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

  • Update grub with

     sudo update-grub
    
  • Reboot

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CSeal
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CSeal

Updated on September 18, 2022

Comments

  • CSeal
    CSeal about 1 year

    When I enter 'Full Screen Mode' on an Ubuntu VM in Hyper-V, it shrinks to a very small resolution that isn't usable. I've tried editing the /etc/default/grub file recommended in other Q&As without luck. I previously had the same issue with 18.04, so I switched to server and ssh'd to the VM; however, I would really like to get a useable full screen desktop going in Hyper-V.

    Thanks

    • Rennish Joseph
      Rennish Joseph about 3 years
      This link fixed the issue for the same issue I had with Ubuntu 20.04 on windows 10 with HYper-v donovanbrown.com/post/…
    • orangecaterpillar
      orangecaterpillar over 2 years
      @RennishJoseph that also fixed my issue with Kubuntu 20.04 on Hyper-V. Worth copy-pasting that into a new answer?
  • djangofan
    djangofan over 2 years
    I tried this on Ubuntu 20.10 but I get a black screen after login attempt with Xorg protocol. I'll have to re-install the vm now in order to get into it and this time I will also install Xvnc as a backup.
  • Md Monjur Ul Hasan
    Md Monjur Ul Hasan almost 2 years
    This worked for me. The key part here (not found in the answer here but found in the medium.com link) is to create the VM using generation 2.