https://bugzilla.kernel.org/show_bug.cgi?id=210787
Bug ID: 210787 Summary: amdgpu fan NA on multi gpu R9 nano Product: Drivers Version: 2.5 Kernel Version: 5.9.12-5.10.1 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: janpieter.sollie@edpnet.be Regression: No
Created attachment 294229 --> https://bugzilla.kernel.org/attachment.cgi?id=294229&action=edit dmesg with manual GPU loading
when running sensors, the 1st GPU fan (this GPU has the display attached) is unavailable:
amdgpu-pci-0700 Adapter: PCI adapter vddgfx: 900.00 mV fan1: N/A (min = 1000 RPM, max = 4200 RPM) edge: +23.0°C (crit = +89.0°C, hyst = -273.1°C) power1: 10.23 W (cap = 150.00 W)
amdgpu-pci-4300 Adapter: PCI adapter vddgfx: 850.00 mV fan1: 1544 RPM (min = 1000 RPM, max = 4200 RPM) edge: +26.0°C (crit = +89.0°C, hyst = -273.1°C) power1: 10.08 W (cap = 150.00 W)
blacklisting amdgpu did not help, but when breaking the config (specifying an invalid parameter in /etc/modprobe.d/amdgpu.conf), and loading it manually with correct parameters, it works.
We're talking about a ryzen 1950x setup here with 2x r9 nano GPUs