Recently I bought Dell S2719DM monitor, which maximum resolution is 2560x1440. I'd like to use it with my mid-2012 13 inch MacBook Pro, so I got Mini DisplayPort to HDMI adapter - it uses HDMI 1.4 and supports 4K resolution, but when I connect my laptop via HDMI cable included to the monitor and this adapter, the maximum resolution available is 2048x1152. What's the problem here, should I buy better adapter? If so, what HDMI or DP version should I consider? Will that adapter work in 1440p with my computer?