After clean install of the Win10-Radeon-Pro-Software-Enterprise-20.Q3, the primary monitor no longer allows to switch to 10bpc Colour depth. (Selecting 10bps just flicks and reverts back to 8bpc. It was working fine using 19.Q3 and 19.Q4 software versions.
Tried switching on/off various settings, only works if I revert to 19.Q4.
Radeon Pro Software Version - 20.Q3
Radeon Pro Software Edition - Radeon Pro Software Enterprise Edition
Graphics Chipset - AMD Radeon Pro WX 3100
Memory Size - 4096 MB
Memory Type - GDDR5
Core Clock - 1219 MHz
Windows Version - Windows 10 (64 bit)
System Memory - 64 GB
CPU Type - AMD Ryzen 9 3900X 12-Core Processor
There have been other Users here in the past having 10 Bit color issues with BenQ monitors and AMD Drivers.
Possibly AMD Forum expert on Professional GPU Cards might be able to help fsadough.