[Bug 106303] amdgpu on RX 560: memory and core clocks not lowered on idle

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Bug ID 106303
Summary amdgpu on RX 560: memory and core clocks not lowered on idle
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter bugs.freedesktop.org@pm.port0.org

Created attachment 139206 [details]
amdgpu_pm_info with 4.15 kernel

There is a problem with amdgpu power management.
With kernels 4.15.X MCLK is always stays at max value.
With kernels 4.16.X MCLK/SCLK both stays at max.

At idle desktop GPU draws about 4W more, according to
/sys/kernel/debug/dri/0/amdgpu_pm_info

Kernels from Ubuntu PPA
http://kernel.ubuntu.com/~kernel-ppa/mainline/

DRM/Mesa libs from Oibaf PPA
https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers


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