Hi Alex,

I remember getting 5 SSDTs aside from the DSDT. I think (think!) in one
of them the _PPC method was populated with values from somewhere in the
system memory. This code was repeated 8 times (for each virtual core).

The theory is that CPUT dies early on because it relies on _PPC being
defined, which it is not at that stage. Later, _PPC becomes
initialized/defined (at least that's what I seem to remember) and CPUT
gets parsed fine on subsequent calls.

As for F.04, I can confirm the fans were on, stuck on low, but weren't
throttling at all. When running with a fixed DSDT (so I could at least
get a critical shutdown temperature and thermal zone sensor) the machine
got so hot that the critical temperature was triggered and Ubuntu shut
down the system.

I'm sorry I can't help you anymore than this as I returned my Envy 15.

-- 
No fans, thermalzone on HP Envy 15 and HP DV6T Quad
https://bugs.launchpad.net/bugs/463940
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