[SOLVED] Unable to change screen resolution

Hi all

KVM
Host - Ubuntu 16.04 desktop
Guest - Ubuntu 16.04.4 desktop

Unable to change screen resolution on Guest. Changing to other resolution always drops back to 1024x768.

Display resolution; 2560x1440

Please help. This version, Ubuntu 16.04.4 desktop, seems having problem running on Virtualbox and KVM

Regards
satimis