[Bug 119211] amdgpu disables fan by default

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=119211

Alex Deucher <alexdeucher at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher at gmail.com

--- Comment #8 from Alex Deucher <alexdeucher at gmail.com> ---
By default the hw controls the fan based on temperature, etc.

Not all cards have a fan control. If you do, then the following standard HWMON
pwm attributes should be available:

 * pwm1_enable: Current fan management mode (MANUAL or AUTO)
 * pwm1: Current PWM value (power percentage)
 * pwm1_min: The minimum PWM speed allowed
 * pwm1_max: The maximum PWM speed allowed (bypassed when hitting Fan_boost)

The fan can be driven in different modes:

 * 1: The fan can be driven in manual (use pwm1 to change the speed);
 * 2; The fan is driven automatically depending on the temperature.

See:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c#n644

-- 
You are receiving this mail because:
You are watching the assignee of the bug.