Setting resolution in Hyper-V

[gregstula.dev at icloud.com]

Hi,

I'm running FreeBSD11 x64 as a Hyper-V guest and I'm having trouble 
finding information on how to increase the resolution to my monitor size 
(2560x1440 @ 144hz).


dmesg: http://pastebin.com/raw/UbbwHeBS

I've tried running

     cvt 2560 1440 144

     xrandr --newmode "2560x1440_144.00" 808.75 2560 2792 3072 3584 1440 
1442 1448 1568 -hsync -vsync

     xrandr --admode default 2560x1440_144.00

     xrandr -s 2560x1440


but the output is "Failed to change the screen configuration!"


I've also tried setting up a custom resolution setting in xorg.conf.d to 
no avail.


Anyone have any experience with this?


Thanks,


Greg