Hi yogib33r,
Nice to see you again.
Doesn't the usual/normal way of changing the screen resolution not work for you ?
From the workbench:
- system:prefs/screenmode
- select display mode resolution
- press save
It will probably ask you to close all intuition windows (and there might be none open). In such a case a restart/reboot will take your changes as well.
If that doesn't work for you then please do tell, as it should work -> even for qemu. Or is qemu forcing this resolution some way or another (and scales the icaros resolution) ?