1/16/new-dell-ultrasharp-u2913wm-29-ultra-wide-monitor-seamlessly-blends-work-an d-play.aspx In this articule, it said 'These Apple computers supply multichannel audio (up to 8 channels) and video signals over Mini DisplayPort', so does it mean it is DP1.2 ?ĭell's site said 'support daisy chain functionality that allows extension or replication' Result are the same with or without both U2913WM DP1.2 were set to enable or disable.īelow are some of the research that I did. Then DP-out on 1st U2913WM to miniDP-in on 2nd U2913WM. Cable connection is miniDP on MBP, DP-in on the 1st U2913WM. I'm using the miniDP-DP cable that came with U2913WM. Extended the screen from MBP, but the issues is those two U2913WM are mirroring. I have a mid 2010 MacBook Pro 15' i7 and two U2913WM. This could be your problem.Ĭan you access the same menu in your OSD and report back what your DP compatability is? Mine is only DP 1.1a and I believe to run 2 of these at full resolution you will need the bandwidth in DP 1.2 which includes MST (daisy-chaining). In the OSD of the monitor, you can access 'Display Settings > Display Info' and it will show you the DP capability. The built-in display on my 13' mid 2009 MBP still works if not in clamshell mode, although I will mostly use mine in my HengeDock. My Dell U2713H arrived today and it works like a charm with the supplied Mini-DP to DP cable. Do you see multiple monitors in 'System Preferences > Displays' if you hook the monitors up like you described in your OP? I'm not sure that TB cables are backwards compatible with DP - I think it's only the ports. I believe your 'nothing plugged in' issue is the cable. So re-reading this thread, I now realize you did exactly what I wanted to do but your issue was having a cloned vs.

Dell u2913wm setup