[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 #29 from MasterCATZ (mastercatz at hotmail.com) ---
from what I can work out the only difference between the kernel versions 
was they added extra thermal readings to support the newer cards with thermal
junction sensors 


{-273150,  99000},
{ 120000, 120000},

has been in their since Jan 2018 ... 

looks like its reading the max temp settings from the bios 
I will confirm this tomorrow I will flash a custom bios 

/torvalds/linux/blob/master/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h


/* The temperature, in 0.01 centigrades, below which we just run at a minimal
PWM. */


so maybe it is thinking it can do 1000C ? 


anyhow as I don't want to run an altered bios as that would force fan 100% on
boot  , what I decided to do was rip out all of AMD's new thermal code ...

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