From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 73338] Fan speed in idle at 40% with radeonsi and at 18% with
catalyst
Date: Mon, 22 Sep 2014 17:56:52 +0000
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Date: Mon, 22 Sep 2014 17:56:52 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=3D73338
--- Comment #43 from Chernovsky Oleg ---
(In reply to comment #42)
>If I got it right, you're giving an option to manually set fan-speed.
Yes, you understood it right. For now it's only the option to manually set =
fan
speed.
>=20
> Wouldn't it be possible to implement such behaviour in the drm drivers? I
> mean like: reading fan profile (like 40=C2=B0C -> 20%, 60=C2=B0C -> 25%, =
80=C2=B0C -> 45%
> etc. and assuming linear scaling between those values), reading temperatu=
res
> and setting fan-speed accordingly?
>=20
That's not impossible, and there's an API called Overdrive6 that's both
accessible to Windows and Linux (only closed source driver though). Mmiotra=
cing
those calls (yeah, actually that thing you mentioned - setting
temperature<-->speed pairs) can lead to implementing this behaviour in
open-sorce driver. Alex said he can provide some patches for me to start wi=
th,
let's see if it will cover these demands.
--=20
You are receiving this mail because:
You are the assignee for the bug.
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Date: Mon, 22 Sep 2014 17:56:52 +0000
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Commen=
t # 43
on bug 73338<=
/a>
from =
Chernovsky Oleg
(In reply to comment #=
42)
>If I got it right, you're giving an option to man=
ually set fan-speed.
Yes, you understood it right. For now it's only the option to manually set =
fan
speed.
>=20
> Wouldn't it be possible to implement such behaviour in the drm drivers=
? I
> mean like: reading fan profile (like 40=C2=B0C -> 20%, 60=C2=B0C -&=
gt; 25%, 80=C2=B0C -> 45%
> etc. and assuming linear scaling between those values), reading temper=
atures
> and setting fan-speed accordingly?
>
That's not impossible, and there's an API called Overdrive6 that's both
accessible to Windows and Linux (only closed source driver though). Mmiotra=
cing
those calls (yeah, actually that thing you mentioned - setting
temperature<-->speed pairs) can lead to implementing this behaviour in
open-sorce driver. Alex said he can provide some patches for me to start wi=
th,
let's see if it will cover these demands.
You are receiving this mail because:
=20=20=20=20=20=20
- You are the assignee for the bug.
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