How to xrandr screen minimum and maxium resolution for Exceed-on-Demand (EoD)

I am using a VDI called Exceed-on-Demand (EoD) This thin client is able to resize the X desktop depending on the size of the monitor at the time you start the client. However, you cannot resize the desktop afterwards. I know that the RANDR extension is present and when I type xrandr this is what I get: my-machine:~% xrandr Screen 0: minimum 3840 x 1137, current 3840 x 1137, maximum 3840 x 1137 screen connected 3840x1137+0+0 975mm x 288mm 3840x1137 0.0* I have tried adding in new modes as described in https://unix.stackexchange.com/questions/320300/adding-new-resolution-in-multi-monitor-setup-via-xrandr But that does not work; xrandr returns an error. Notice that the minimum and maximum screen resolution are the SAME. I believe this is my problem. Does anyone know how to tell EoD to use a different screen size or how to change the minimum and maximum screen size for xrandr?