I can't get my new LG HDR 4K monitor to have hi def with my 2015 11" MacBook Air.
I purchased the LG 32UL500-W HDR monitor because it was hi-def and had speakers. Unfortunately, when I plugged it into my 11" Early 2015 MacBook Air using a thunderbolt to HDMI cable, not only am I not getting hi-def, the volume controls on my keyboard don't work. The best resolution is 1920x1080 instead of the 3840x2160 monitor's capability. I could try using a DP cable but there is no audio input alternative to HDMI so the speakers wouldn't work. Can the graphics card (Intel HD 6000) not handle HD? Is there a different cable I can try? Or an alternative monitor (with speakers) to buy? I'm having a hard time reading the little SUM totals in Numbers and thought a sharper monitor would help. Thanks
MacBook