Unfortunately there are no screenshots available with the cru settings to pull this of.
On this forum evmadic posted *without a source though. The following:
viewtopic.php?t=12874&start=10
This suggests that DP 1.4 should manage 480hz 1080P with DCS disabled.
This is how I try to make the resolution
This is the starting position
When I lower the porch settings the screen goes black when I enable the new resolution.
I am starting to think that 480hz without DCS is not possible and that the stats evmadic provided are not correct.
The new Zowie 540hz 1080P 8 bit color has DCS enabled on HDMI 2.1 Why would Zowie enable DCS if HDMI 2.1 can manage 48 Gbps? Its not needed.
I hope the rumors are not rumors and that its actually possible. How someone can give me a hint to make it work!