[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 #49 from muncrief (rmuncrief at humanavance.com) ---
(In reply to Jan Ziak (http://atom-symbol.net) from comment #48)
> (In reply to muncrief from comment #47)
> > (In reply to Jan Ziak (http://atom-symbol.net) from comment #46)
> > > There is also the possibility to use question marks in the path:
> > > 
> > > /sys/class/drm/card?/device/hwmon/hwmon?
> > 
> > Thank you for mentioning that. If you only have one GPU that will indeed
> > work. I have multiple GPUs, one Nvidia and one AMD, so I have to hard-code
> > the card.
> 
> Maybe you can use the PCI ID of the device:
> 
> FOUND=false
> for CARD in /sys/class/drm/card?; do
>   DEVICE="$(cat "$CARD/device/device")"
>   if [[ "${DEVICE,,}" == 0x67b1 ]]; then
>     FOUND=true
>     break
>   fi
> done
> $FOUND || exit 1
> HWMON=$CARD/device/hwmon/hwmon?
> echo $HWMON

Well, my system works great the way it is and I don't really have time to do
any further debugging or redesign. I'm just trying to help MasterCATZ get
things going. However that's another great way to determine where a specific
card is, thank you for the multiple great suggestions!

It's great to see so many people trying to help, we need more of that in Linux,
especially with Arch and its derivative distros. It's very irritating and
frustrating when I see experienced users simply tell others to "read the wiki",
or expect them to use Linux for two years before they can have a usable
installation.

In fact that kind of old, outdated, and downright mean attitude is one of the
reasons Linux still has such a low share of the desktop market. So whenever I
see someone who needs help I try to make it as easy as I can for them, and have
even been insulted numerous times by the cruel people who are angered that I
don't just tell others to get a PhD or something :)

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