With the freezes I had it was not possible to "revive" from, all I could do is long-press the power button.
So maybe the freezes you encounter are another issue, maybe this bug: https://bugs.launchpad.net/kubuntu-ppa/+bug/1384512
It is about KDE but sounds similar and might be related to the video driver, so maybe Unity suffers from the same issue?
With the freezes I had it was not possible to "revive" from, all I could do is long-press the power button.
So maybe the freezes you encounter are another issue, maybe this bug: https:/ /bugs.launchpad .net/kubuntu- ppa/+bug/ 1384512
It is about KDE but sounds similar and might be related to the video driver, so maybe Unity suffers from the same issue?