using xrandr to automatically resize X11 display with open-vm-tools?

Hi,

I tried `xrandr --output default --gamma 1 --auto`, however my display
isn't resizing.

I found a solution for xfce4 here, which works to resize the display at the
VMWare window is scaled or is in full screen, however I'm using .xsessionrc
and twm wm and this doesn't work for it:

https://github.com/coonrad/FreeBSD-Xfce4-VMware-Install-Guide

I'm using VMWare xf86-video-vmware and the above instructions worked for
`startxfce4`.  Does anyone have suggestions on how to accomplish this or
where to debug it?

Thanks