| Bug ID | 108379 |
|---|---|
| Summary | high idle power consumption |
| Product | DRI |
| Version | unspecified |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | grmat@sub.red |
system: - Polaris10 (Ellesmere) - Linux 4.18.14 - WQHD (2560*1440 pixels) monitor with 144 Hz (DisplayPort) expected behaviour: GPU power states should be lowered to the minimum states while idling to save power, heat and noise. actual behaviour: - DC on (default): GPU stuck at highest SCLK DPM state, power consumption as per amdgpu_pm_info is ~24 Watts - amdgpu.dc=0: MCLK stuck at high DPM state, power consumption as per amdgpu_pm_info is ~26 Watts - Windows: correct (lowest) SCLK/MCLK DPM states, measured power consumption is ~16 Watts lower compared to Linux Note: https://bugzilla.kernel.org/show_bug.cgi?id=201275 fixed a regression causing *additional* power draw (SCLK and MCLK both at max, power consumption at ~38 Watts while idling). I can't tell if it's a regression as I've just recently got the GPU. Randomly tested kernels from within 4.17 to 4.18.14 all suffer from this issue.
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