Originally Posted by pauloavelar
Maybe this fix is not as good as you'd expect, but MAYBE you can avoid it keeping power button pressed longer. Don't release it as soon as the power menu shows up, just keep for an extra second. It's not tested for KANG version, but it worked for me on other roms with similar problems.
We have the same issue with the power button on the VM670, and I can confirm it seems to be a timeout issue. Holding the power button longer than normal works. Will have to look into the timing test used, compare to CM7, and figure out what the diff is. Should be an easy fix, but will have to be submitted to gerrit, or added to kangs.