Comment 88 for bug 774089

Rcrook9190 -- my MacBook Pro is a 5,4, which there weren't any firmware updates for, either.
But I went to "About This Mac" under the Apple icon and saw that the last firmware update was for the 5,3, so downloaded that & re-flashed with that, and it was fine after that.
And yes, this is a very serious bug -- and how bloody ironic that it happens in the version of Ubuntu that looks most like OSX to date? :)
FWIW, I've given up, for now. I've got my computer working again, so I can do my job, and for my personal C++ coding I'm using clang. I'd rather be on Ubuntu using the latest GCC, but I've fairly had the fight knocked out of me for the time being.
Maybe the next release, eh?