after the installation on a z3 machine deneb should be working in z3 pio mode on next boot. the dma mode has to be enabled manually, so this should not be the problem u encounter. normally deneb plays some intro on rgb while/after initiated. you can interrupt it by klicking. i assume also it would be best to try z2 mode first. the mediator or whatever u have underneath ur voodoo could also possibly cause a problem although while i cant use dma on my machine, i already ruled it out as a cause of the problem.
