02-04-2018 12:28 AM
Recently purchased Yoga 370 with USB-C to Displayport adapter (FRU 03X7204) to connect to my DELL U2412M.
When I plugged in the adapter to the Yoga, it detects as "USB Billboard Device".
Google tells me that it means something went wrong when during the handshake between dongle and notebook for initializing DP alternate display mode.
I have nothing else to go on because there is no error message displayed... I have switched TB 3 mode to Displayport and USB in BIOS and that did not work.
Anyone has any ideas? Much appreciated in advance.
Solved! Go to Solution.
02-06-2018 05:51 AM
Ok solving my own problem.
Turns out it had something to do with my cable. I was using DP-DVI cable which was working fine on my previous HP notebook (it had a dedicated DP port).
So a word of advice for those using USB-C Alt DP, use a good DP-DP cable that supports DP 1.2 or higher and proper resolution (1080p, 2K, 4K etc).