I want to connect to my computer via Teamviewer but the resolution is fixed to 640x480. Im using a RX480 graphics card with current drivers but no monitor.
I browsed through all the threads i could find and tried whatever i could find:
Change in the normal resolution settings is greyed out. 
The list in advanced settings only shows small resolutions 
Raddeon settings disable the options with no monitor connected 
Editing the registry values for Xresolution and Yresolution did nothing
A dummy plug is not a valid option since im 400 km away from it
