[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 #50 from MasterCATZ (mastercatz at hotmail.com) ---
Thanks for correction, I was unsure if $HWMON knew to go to hwmon1

works until GPU hits 70 deg then something forces "pwm1_enable" to auto and
starts ramping the fan speed down until its 20% @ 90+ deg and bliping 100% @ 95
deg 



for now all I can do is run custom bios with 800 memory speed and 850 core and
keep toggling between standard and performance mode on to reset fan speed to
100% and redo that every time its drops back below 40% and set
/sys/class/drm/card1/device/hwmon/hwmon1/power1_cap to under 140w so the GPU
does not cook 

so unless its "Radeon Profile" doing something to get locked out I have no idea 

its fan profile should be 
over 70 deg 1:1 ratio 
under 60 deg 50%
under 50 deg 10%
under 40 deg 5%
under 20 deg 0%

any way to find out what is accessing pwm1_enable ?

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