Daisy-Chain Thunderbolt Monitors

I have been having a lot of issues since purchasing two new thunderbolt displays. I mounted both displays on my office wall via VESA brackets. I was super happy with how they looked and how they were able to Daisy-Chain together making them the most beautiful full function docking station for my MacBook Pro. I hooked up my mac via the single thunderbolt cable and power cord from monitor 1 and turned on my Mac. As expected the two monitors came to life in dazzling fashion giving me 54in of usable space. My issues began after I disconnected my Mac to go to a meeting. When I returned and reconnected the power and thunderbolt cords and after the usual blinking of the monitors only the Mac and monitor number 1 worked. Monitor 2 (the one daisy-chained to number 1) would not turn on, 27in of blackness. I tried reconnecting, changing the order of the displays, rebooting, and even re-imaging; nothing worked. I Googled it and found a lot of issues that people were having with displays and thunderbolt drives but none offered a solution that worked. after a lot of research I was able to piece together what was happening and a fix that actually worked. The issue is the Thunderbolt ports and they way peripherals get assigned. So the first time I connected the monitors they worked great but when I went to a meeting and connected to a projector or went home and connected to my single thunderbolt monitor there the ports would get reconfigured to run the single monitor or projector. Macs use SMC (System Management Controller) to control many low level functions like lights, fans, power button, and ports. http://support.apple.com/kb/HT3964 Following the SMC reset fixes the port assignment issue and allows the Mac to recognize the daisy-chained monitor or drive. One additional tip is to plug in the power and thunderbolt cable before resetting the SMC. it is a simple keyboard procedure that is easy and works every time. I hoping a firmware update of SMC will make this fix obsolete but until then at least my $2500 display investment is paying off in a lot of beautiful useable space.

Please do not double post - it does not help and things can get very confusing, so I've asked the hosts to remove the duplicate.
Good luck!

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