In addition to the wake problems (that come and go like the tide), I have started to experience a very similar "logoff of death" crash lately. By simply logging off, I sometimes get to that dreaded black screen (with a seemingly working keyboard and a steady
IR light), forcing me to power off hard. The event log indicates a 0x14f bug check had occurred. Symptoms are exactly the same as when waking from sleep, merely triggered by a different action.
Interestingly, the fatal logoffs were prompted by a weird issue affecting both the Netflix app and their web site: First, the Netflix app simply hung on launch and eventually terminated. Then, Edge also froze up when trying to log in from the main netflix.com
page, or trying to follow any link from there. However, entering the URL of the Netflix login page manually worked, but then Edge hung again when submitting my credentials. No other apps or web pages were failing while this was going on, surprisingly. Assuming
my session had got into some bad state (since Netflix wasn't down on other devices), I tried to log off, and then - boom. This definitely has the smell of a graphics driver bug.
That was the constructive part, here is my frustrated rant:
Can we please get some sort of explanation from Microsoft how come their premium PC, where they own the whole experience just like that popular fruit company, has the reliability of some generic junk kit running a pirated copy of Windows ME, and
when they are going to fix it? The steady stream of driver updates looks like a large scale game of whack-a-mole by trial-and-error, but we need a
solution, not another rearrangement of deck chairs on the Titanic. (And you know what's really sinking here.) Judging from the activity in this thread, the black screen crashes are not isolated incidents, but plague a fair number of SP4 owner, if not
all of them to some extent. It's nothing short of a disaster.