since i update the driver package on my two Pcs i cant use 4K/60 Hz anymore... I changed nothing only update the Driver!
My main PC is an AMD System with an Asus RX560 4GB Graphic card, connectet with DP on a LG 27UD58-B 4K Monitor which support DP 1.2 and HDMI 2.0,
second PC is an HP Pavillion with an AMD A10-9700 with R7 onboard Graphic (HDMI) connected to an other LG 27UD58-B.
on HDMI i have artefacts and Black Screens sometimes and on DP the DP LInk set to a lower bandwith that allow only 4K on 30Hz. I try different Cables (4K ready) but not work..
also i try change the sytems but not work too... I think that would be unusally that two systems had the same Problem... the only change was the drive update... reinstall windows no success too.
can someone help me?