AMDGPU Driver To Allow Radeon GPU Fan Speed Controls Via Sysfs

[phoronix]

Phoronix: AMDGPU Driver To Allow Radeon GPU Fan Speed Controls Via Sysfs

A set of five patches were sent out on Sunday by AMD's Rex Zhu that enable RPM fan settings to be viewed and manually toggled via the sysfs interface...

http://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-Sysfs-Fan-Speed-Controls

[EarthMind]

I don't know what this changes, because this has already been possible by manipulating the sysfs files. I used it to disable the fans at low temperatures.

[Michael]

I don't know what this changes, because this has already been possible by manipulating the sysfs files. I used it to disable the fans at low temperatures.

Was it using the PWM interface rather than RPMs?

Added clarification to article as well, "This is on a fan RPM basis while previously some AMD graphics cards could be controlled on a PWM (Pulse Width Modulation) toggle."

[EarthMind]

Was it using the PWM interface rather than RPMs?

Added clarification to article as well, "This is on a fan RPM basis while previously some AMD graphics cards could be controlled on a PWM (Pulse Width Modulation) toggle."

Yeah, oh so now I know the difference this brings!

[xpris]

Only amdgpu? Not old radeon?

[M@GOid]

My RX570 is idling at 1500 RPM, while on Windows it turns off. This will be of some use to me.

[aufkrawall]

My RX570 is idling at 1500 RPM, while on Windows it turns off. This will be of some use to me.

You can already use PWM controls, simply multiply your percentage value by 2.55.

[caligula]

You can already use PWM controls, simply multiply your percentage value by 2.55.

Doesn't sound like the patch is that complex then.. Would be nice if there was some DVFS style framework where you could control gpu speed, voltage, temp, fan power with a governor.

[tuxd3v]

Doesn't sound like the patch is that complex then.. Would be nice if there was some DVFS style framework where you could control gpu speed, voltage, temp, fan power with a governor.

A governor would be nice...in a Graphical Environment Amd Control Center..

Infact it already exists for CLI, if you look into the Documentation
https://dri.freedesktop.org/docs/drm...and-monitoring

In This Regards, AMD has more Options than Nvidia, because offers you 5 Choices( Nvidia Only Offers you 2 choices)

# NUM MODE_NAME SCLK_UP_HYST SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL MCLK_UP_HYST MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
# 0 3D_FULL_SCREEN: 0 100 30 0 100 10
# 1 POWER_SAVING *: 10 0 30 0 100 10
# 2 VIDEO: - - - 10 16 31
# 3 VR: 0 11 50 0 100 10
# 4 COMPUTE: 0 5 30 - - -

[torsionbar28]

My RX570 is idling at 1500 RPM, while on Windows it turns off. This will be of some use to me.

Can you even hear it at 1500 rpm? Seems like probably not, or very minimal.