Apparently, owners of 2011 MacBook Pros are reporting that under heavy load, their notebooks will freeze, even as sound continues. The cursor will still be movable, but the computer is completely unresponsive, and the only way to solve the problem is a hard reboot.
A rather lengthy thread, more than 41 pages, on Apple’s discussion forum describe brief blackouts and flickering when hooking up a 2011 MacBook Pro to a 24-inch Cinema Display via the new Thunderbolt port, which is backwards compatible with DisplayPort. The fact the built-in display isn’t affected might suggest a problem with the Thunderbolt port, although it’s most likely software-related.
Apple hasn’t yet acknowledged these persistent glitches. They are reportedly aware of these problems, some users wrote, and are investigating them.
Electronista over the weekend noted a growing thread in the Apple Discussions forum regarding flickering issues being experienced by users of the new MacBook Pro paired with a 24-inch LED Cinema Display.
Users have already tried some of the more common tricks, such as resetting the SMC, but haven’t had any initial success. It also applies whether or not the AMD or Intel graphics are being used.
The Apple Discussions thread has continued to grow in the days following the original report, with at least one user reporting experiencing the issue with a 17-inch MacBook Pro.
Apple support staff are reportedly investigating the issue, having swapped out one user’s affected machine specifically to examine a unit known to be experiencing problems.Well, it appears Apple is aware of the issue. An Apple Discussions Host called me a few days ago after seeing one of my recent posts. He offered to swap my MacBook Pro for a new one so Apple Engineers can get their hands on a known bad unit. I shipped it off last night and anxiously await my replacement.