https://bugs.freedesktop.org/show_bug.cgi?id=108605
Bug ID: 108605
Summary: R9 380 fan speed is either 100% or very low, during
moderate usage gets too loud
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: [email protected]
Reporter: [email protected]
Created attachment 142283
--> https://bugs.freedesktop.org/attachment.cgi?id=142283&action=edit
Just a few logs from my pc as per AMD reporting bugs instructions
I noticed that when i am playing a video game, the gpu fan seems to be quiet
for around 10-20 seconds, then gets too loud for around 3-4s, then back to
idle, and this repeats until i quit the game. Upon examination i found out that
for some reason the automated dpm sets the fan too low until temperature rises
too much (around 100C), then it sets the fan speed to 100% (around 3500RPM), it
drops rapidly, and the cycle goes on and on like this.
I tried setting the fan speed manually through:
echo "1" > /sys/class/drm/card0/device/hwmon/hwmon2/pwm1_enable
and
echo "X" > /sys/class/drm/card0/device/hwmon/hwmon2/pwm1
and found out that for my card the only values that seem to work are: higher
than 199 (sets the fan speed to max) and lower than 196 (sets the fan speed to
around 150-190RPM, the lowest my fan will go)
I think this is a bug, i don't have a Windows partition anymore but i don't
remember ever having this issue on Windows. My GPU is a Sapphire R9 380 ITX
Compact 2GB. I am using 4.18.16 kernel and 18.2.3 MESA on Archlinux.
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