I recently switched out my MBP for a rMP, primarily for portability. I have a 30" Dell 3008wfp monitor. I cannot get the resolution to clear up when using the USB-C to HDMI adaptor. I had a similar problem with my MBP that I resolved by using a dual-link DVI-D cable from my Thunderbolt docking station. The only thing I have found to get the hi-res video with the Macbook is connecting it with Google's USB-C to Displayport cable. Video works great, however, no audio over the monitor's speakers. In the system properties sound, it isn't showing anything other than the internal speakers. I thought that audio could pass thru the displayport just like an HDMI. Is there some other configuration that anyone knows of that could get the audio working?