EXPLANATION (Solution below)
So people who have the rift probably came to this discussion to find out how you can solve the issue with the no display and only sound when using the Dell Inspiron 7000 Gaming Series. I’ve tried from using usb hubs, to buying new headsets and even considering buying a whole new pc for the rift. I don’t want people like me to go through everything I went through and that’s why I made this discussion. It was very weird how the HTC Vive worked on the laptop while rift didn’t. And some people came to the conclusion that it didn’t work because it’s an Optimus laptop. So even if you tried to force the laptop to use the dedicated GPU, it still didn’t work. But the issue was display, nothing else. So I narrowed it down to the hdmi cord. I thought maybe the issue was with the hdmi cable and MAYBE it wasn’t receiving enough power, even though the compatibility tool said the laptop’s compatible. So I did my research and heard the the HTC Vive’s Link Box works perfectly fine with the Rift. And it also required a power source of it’s own. Making sure that it’s not the power that’s the issue. And indeed it was the solution! Make sure to read below for the details.
Buy the HTC Vive Link Box and a power source, REMEMBER! It doesn’t come with one... Then, make sure you have a spare hdmi cable laying around, if not, buy that too. Then once you got them (Should be around 40 ~47 dollars), plug in the hdmi into the port in the pc and the port in the Link Box on the side labeled ‘PC’. Then plug the power source into an outlet and on the pc side as well (Of the Link Box). When your’re done doing that, plug the headset’s hdmi cable into the ‘VR’ labeled side, which will fix the display issue. Then if you want, you can buy a male to male USB 3.0 Cable to link the USB ports of the pc and Link Box together, but if you don’t want to pay for one or don’t have one, instead of plugging the USB cable into the Link Box, just plug it in the USB port of your pc, since the sounds worked before. And there you have it!!! So far, for me it’s working great!
P.S. Once you get it working, you’ll realize it was totally worth to go through all that!
Good of luck in your VR adventures!