<div>When I install a OS in the VM,it already has a Graphics Driver.When I install a QXL Driver later,how can it work?</div>
<div>It will replace the OS Graphics Driver or work together with the OS Graphics Driver?</div>
<div>When a application request the OS graphic engine,the commands will pass to the the OS Graphics Driver or the QXL Driver or first OS Graphics Driver then QXL Driver?</div>