Wider screen resolution on Fedora running on Hyper-V in Windows 10

I'm currently running Fedora on Hyper-V of Windows 10. It is now running with 1920x1080 resolution after I edited GRUB configuration. However I failed to set it to 2560x1080 (it simply ignored this parameter), which is my screen resolution. Is it possible to do that? If not, why? And is there a list of supported resolutions?

Note: I know that I can either go for Remote Desktop or type-2 hypervisor.

Answers found so far:

1. change it in Fedora: no other resolution available.
2. follow the guide for Ubuntu: update-grub not found
3. possibly Hyper-V Integration Services: part of kernel now.

Solution 1:

grubby --update-kernel=ALL --args="video=hyperv_fb:1024x768"

The above command works. I know that this question was posted months ago but since it is not answered yet, I am posting a solution that I found to be working.

your mileage may vary !