https://bugs.freedesktop.org/show_bug.cgi?id=108323

Bug ID: 108323 Summary: RX580 starts doing a constant noise after setting fans to a fixed value, then back to auto Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: bmilreu@gmail.com

I'm using the sysfs API with those steps:

To switch to manual fan control from automatic, run # echo "1" > /sys/class/drm/card0/device/hwmon/hwmon0/pwm1_enable

Set up fan speed to e.g. 50% (100% are 255 PWM cycles, thus calculate desired fan speed percentage by multiplying its value by 2.55):

# echo "128" > /sys/class/drm/card0/device/hwmon/hwmon0/pwm1 To reset to automatic fan control, run

# echo "2" > /sys/class/drm/card0/device/hwmon/hwmon0/pwm1_enable

My RX580 Nitro+ starts beeping a constant high pitched weird noise until I set it back to a fixed value or until reboot. It doesn't happen if start on auto, only after switching to a value then back to auto.