[Bug 201539] AMDGPU R9 390 automatic fan speed control in Linux 4.19/4.20/5.0

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201539

--- Comment #36 from MasterCATZ (mastercatz at hotmail.com) ---
after having good fan control for a few weeks
 5.4.2-050402-generic is now having a melt down back to trying to run the cards
@
 (crit = +104000.0°C, hyst = -273.1°C)

and this is whats got me stumped , it seems to go auto when it hits high temp ~
70 then starts dropping the fan speed I can exit a game set a high fan speed it
will sit their @ 60 deg for a good 20 mins with ~ 60% , decide to go back into
game .. hits 70 .. fan speeds keep dropping until its 20% and blipping 100% @
95 deg

I am very close to going back to liquid cooling ... or connecting the fan to a
manual speed controller ( if someone knows of a way I can still have the fan
connected dor driver control and monitoring with a manual device override for
PWM I am all ears , would it be safe for me to just use a thermostat to just
send voltage to the fan ? ie) 2x input power sources 



my guess base or asic  is what its reading now about to hack away at those
modules and try again 

/home/aio/Programs/linux/drivers/gpu/drm/i915/oa/i915_oa_tgl.c
/home/aio/Programs/linux/drivers/gpu/drm/amd/include/asic_reg/vce/vce_4_0_default.h
/home/aio/Programs/linux/drivers/gpu/drm/nouveau/nvkm/engine/ce/gf100.c
/home/aio/Programs/linux/drivers/gpu/drm/nouveau/nvkm/engine/ce/gt215.c
/home/aio/Programs/linux/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

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