Yeah, I know, it's quite a popular topic and I've read plenty of threads with a similar title
My case: CV1 that works OK on my work PC but doesn't on my home PC. My home PC has USB 3.0 ports and even one USB 3.1 port, GTX 980Ti and i7-6700K CPU. Monitor AoC G2360PG G-SYNC.
I have always yellow light near proximity sensor on the Rift and black screen. On my work PC the light is white and everything works fine.
What I tried:
there're lots of complains about HDMI ports so I bought HDMI->DisplayPort adapter and tried it.
Suspecting it can be not enough power supply I tried to unplug everything except mouse/keyboard, xbox controller, rift sensor and rift itself. by the way, can it be insufficient power supply at all?
Enabled on-board video and plugged monitor to it. Also tried to plug Rift to it - it was not detected.
Tried different USB ports including available USB 3.1.
Tried Rift Mode and Touch Controllers Mode.
Of course, rebooted couple of times. Reinstalled Oculus setup. Tried to unplug/plug monitor and rift and plug them in different orders.
Now I ran out of ideas
The only weird thing that I noticed was: once when I plugged two sensors (oculus touch) my monitor lost connection, when unplugged sensons monitor restored connection but was blinking. Reconnecting monitor fixed the problem.