>It doesn't hang. Though it seemed close to hanging a couple times,
>but after a 5-10 second pause always managed to go to sleep. I tried
>about 15 sleep cycles, with a few echo 1 > polling_frequency thrown in.
ACPI SPEC define:
_PSV : thermal zone object that returns Passive trip point in
tenths of digress Kelvin.
_ACx: thermal zone object that returns active cooling policy
threshold values in tenths of degrees Kelvin.
I suspect , when hang, the system was trying to start active cooling
with Fan
in function acpi_thermal_active that was somehow conflict request with
_PTS's call to SMPI in BIOS. So, the solution is :
Disable active/passive cooling request before suspend.
To verify this, please hack acpi_thermal_active.
We need a suspend/resume method for acpi thermal to cleanly solve
your problem.
Thanks,
Luming
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