| Bug ID | 107518 |
|---|---|
| Summary | polaris powerplay init fails: There must be 1 or more PCIE levels defined in PPTable |
| Product | DRI |
| Version | unspecified |
| Hardware | PowerPC |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | shawnanastasio@yahoo.com |
Created attachment 141002 [details] dmesg for 4.17.11-200 When booting kernel 4.17 or 4.18-rc8+ (git) on a POWER9 system with an ASUS Rx 580 GPU, the following messages are printed to the kernel log: [ 10.398837] amdgpu: [powerplay] There must be 1 or more PCIE levels defined in PPTable. [ 10.398839] amdgpu: [powerplay] Failed to populate SCLK during PopulateNewDPMClocksStates Function! [ 10.398840] amdgpu: [powerplay] Failed to populate and upload SCLK MCLK DPM levels! Note that the system is booted with the kernel argument `amdgpu.dc=0` to work around this issue: https://bugs.freedesktop.org/show_bug.cgi?id=107049 GPU performance seems to be significantly hindered as a result of these errors. Booting with `amdgpu.dpm=0` silences the errors but does not improve performance.
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