I have a Surface Laptop 3 with a USB C 3.1 Gen2 (10 Gbit/s) port. Currently, my Surface is connected to the Spectrum via USB C (bandwidth priority set to high refresh rate). However, with the current setup, anything above 4K @ 60hz is limited to 6-bit colour. I can get the depth to 10-bit @ 4K60 by enabling HDR but it appears there isn’t enough bandwidth since the display constantly turns black.
The USB C port supports DP 1.4. Could I achieve better performance by using a USB C to DP 1.4 cable?