Just bought this AMD Radeon Pro WX 4100 (specs 4x mDP 1.4). I have connected it into monitor 34" LG 34UM58 Ultrawide (specs 2x HDMI 1.4, ratio 21:9, native resolution 2560x1080) using DP-HDMI cable. In my OS Windows 7 x64 I can set only 1920x1080 resolution (and some more, but all in 16:9 ratio). Previously a ran onboard Intel graphics using HDMI cable with no problem. How can I get this to run on 2560x1080? I hope I don't have to return the graphics card nor the monitor. Please advise, I have found quite a lot of threads related to this, but none has given me a reliable answer.
Thank you in advance, guys.