Displaying 2 results from an estimated 2 matches for "fan_max".
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2017 Nov 23
2
Addressing the problem of noisy GPUs under Nouveau
...termines what fan speed to (attempt
>> to) program.
Oh, thanks for giving me an idea about what the other values in this
table may be about :D
Anyways, the current code uses the entry id 0x46 of the thermal table
(bit P, offset 0x10) to find out what are the thermal points for
$fan_min and $fan_max. The $fan_min and $fan_max values are found in the
entry id 0x22 of the same table.
If the 0x46 entry is not present in the thermal table (which seems to be
the norm for Fermi), we revert to default values: 40 -> 85°C.
With these 4 values, we get 2 trip points (temp_min, fan_min)
and(temp_max,...
2017 Nov 22
3
Addressing the problem of noisy GPUs under Nouveau
Hi Martin,
I was asked to clarify a few things:
(1) Are all the user reports of loud fans on Fermi-era GPUs?
(2) When the VBIOS POSTs the card, it loads initial ucode onto the Falcon
processor (PMU), which will do basic fan management on its own. We call this
init ucode "IFR" (Init From ROM). nvidia.ko will restore the IFR ucode when
unloaded. I assume the loud fan symptom occurs