Valve index not working with adequate TB3 adaptator

XaryiXaryi Level 1
edited September 2020 in ZenBook
  1. System: Windows 10
  2. Battery or AC: AC
  3. Model: UX581GV-XB94T
  4. Frequency of occurrence: Always
  5. Reset OS: no
  6. Screenshot or video:


Detailed description:I ordered a Cable Matters adaptator for outputing dp to a Valve Index .It can output 8K no problem and it has been working just fine with an output to a second monitor but when I try to connect it to the valve, steam VR ask me to switch the screen mode from duplicated to extended. The problem is that everytime I do that it instantly come back to duplicated.

I know this adaptater is working so please don't tell me again to change as I already did that several times. I would like this to work because I need my 3500€ PC to be able to work with VR for my work.


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