Recently, my adapter (DP to 4K @ 60Hz – 4096 x 2160) is no longer working, it is now working with 4K (3840 x 2160 @ 30 Hz only).
I am not sure what has caused this, as I am running Windows 10 Enterprise x64, along with my graphics card: NVIDIA QUADRO K4000, Driver Version: 220.127.116.1195 (Date: 2016-09-22, Driver Provider: NVIDIA)
My 4K TV is the Samsung UN60JS7000 (HDMI UHD Colour Option is ENABLED & has the latest software / firmware / updates), and I am using HDMI 2.0 Cable as well.
Now the situation is even worse: in order to get 4K @ 3840 x 2160 @ 30 Hz, HDMI UHD Colour Option needs to be disabled, otherwise, I either get a flashing white colour screen – when attempting either 4096 X 2160 @ 60 Hz or 3840 X 2160 @ 60 Hz)
I tried uninstalling the device drivers, running ccleaner (clean out registry keys), etc. to no resolution.
At one point, I didn’t get any displays on the TV, and had to resort to using DP to HDMI (direct cable connection from the video card to the TV) and go back to 1920 x 1080 @ 60 Hz.
I was reading the form, and advised there could be a firmware upgrade for my adapter: firmware v.7.26, as per sticker on the cable itself. Perhaps someone can show me if there is an updated firmware?
Can someone please provide additional assistance / further troubleshooting?
Thanks in advance.