| Bug ID | 97556 |
|---|---|
| Summary | amdgpu fan behavior doesn't match windows |
| Product | DRI |
| Version | XOrg git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | notasas@gmail.com |
| CC | alexdeucher@gmail.com, notasas@gmail.com |
Some AIB vendor cards have fan profiles tuned to them, which include marketing features like "Zero Frozr", "0 RPM", "Mute Fan" and so on that stop the fan completely while idle. This doesn't seem to be working with amdgpu, the fan always spins although some thermal control does seem to work. My card is MSI RX 470 Gaming X 8G, which has the following vBIOS: https://www.techpowerup.com/vgabios/185500/185500 Dumping ATOM_Fiji_Fan_Table shows: usTMin: 4000 usTMed: 6500 usTHigh: 8500 usPWMMin: 2000 usPWMMed: 4000 usPWMHigh: 6000 usTMax: 10900 ucFanControlMode: 1 usFanPWMMinLimit: 18 usFanPWMMaxLimit: 100 usFanPWMStep: 1 usDefaultMaxFanPWM: 100 usMaxFanPWM: 100 usFanRPMMinLimit: 18 usFanRPMMaxLimit: 100 This doesn't seem to really correspond to how it works on Windows, where the fan stops completely while under 60C (which is how it's also advertised by the vendor). I've not installed any MSI tools there, just the base AMD driver, it also doesn't depend on any autorun .exe, only the base driver is needed for it to behave as advertised on Windows. So does anyone know what is done different by the Windows driver? Perhaps a different fan table is used from the vBIOS? Or perhaps the driver has this logic hardcoded for each partner card? Can it be done on Linux too?
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