if(use_rate)
result = XRRSetScreenConfigAndRate(fgDisplay.pDisplay.Display, xrr_config,
fgDisplay.pDisplay.RootWindow, res_idx, rot, rate, timestamp);
if(use_rate)
result = XRRSetScreenConfigAndRate(fgDisplay.pDisplay.Display, xrr_config,
fgDisplay.pDisplay.RootWindow, res_idx, rot, rate, timestamp);