Hello all! I have a 2011 iMac that I've loved for ages now, and it's been a perfect little champ to me. However, today I went to hook up my MacBook in target disk mode to it via Thunderbolt to do a couple large file transfers, and nothing happened. I checked that the port on my MB was working fine by hooking it to my mini server, and it worked fine. The thunderbolt port on my iMac seems completely dead - even when I look in System Profiler, it shows that there is no hardware found for thunderbolt. Any ideas what could have happened and if there's any way to fix this short of a new logic board? Thanks!
BTW, I've tried SMC and PRAM resets. Also, it works fine to hook an external display into.
BTW, I've tried SMC and PRAM resets. Also, it works fine to hook an external display into.
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