It honestly seems like this BIOS was commissioned by a baboon. It
should've never passed QA like this. I'm taking my Envy back for a
refund. There is only so much time I can spend on debugging something
that should just work.
To recap our findings so far;
* Fans not working (at least on F.04).
* Thermal zone/sensors not working.
* ACPI parsing aborts in several places due to initialization bugs (Linux
does work around this)
* CPU Powersaving (aka C-State switching) only works if you boot the
machine without AC adapter attached.
* No critical shutdown temperature returned for anything else but Windows.
In short, this BIOS is a recipe for a cooked CPU: all cores are always
awake, all of the time (generating copious amounts of heat). Heat which
is insufficiently dissipated by the fans (they don't seem to throttle at
any temperature). The OS can't shut down the machine if it gets too hot
because it is kept in the dark about 1. the current temperature 2. what
temperature is considered critical.
Nice.
--
No fans, thermalzone on HP Envy 15 and HP DV6T Quad
https://bugs.launchpad.net/bugs/463940
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