HI I HAVE CONNECTED THE OPTIX MAG342CQR MONITOR with HDMI cable to a Mac Pro 2013 3.5 GHz Intel Xeon E5 6 core with AMD FirePro D500 3 GB video card, I cannot change the resolution and activate HDR and adaptive sync the current resolution is 2560×1080 60hz how can i do to reach the optimal resolution of 3440×1440
previously i had a samsung 34 “monitor set with 3440×1440 60hz resolution