[Bug 211263] New: amdgpu: navi (RX 5500 XT) high power consumption while idling on 75Hz display

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211263

            Bug ID: 211263
           Summary: amdgpu: navi (RX 5500 XT) high power consumption while
                    idling on 75Hz display
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.10.7
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: contato-myghi63 at protonmail.com
        Regression: No

Created attachment 294731
  --> https://bugzilla.kernel.org/attachment.cgi?id=294731&action=edit
corectrl monitoring at 60hz and 75hz

Overview:

My RX 5500XT (GV-R55XTOC-8GD) consumes about 15W on idle if my monitor
(24MK430) is on 75Hz, and just 3W on 60Hz. This did never happened before 5.10
kernels. Any older kernel consumes 3W even on 75Hz, same hardware, same
configurations.

Steps to reproduce:
Install any distro with 5.10 kernel on a system that have high refresh rate
display and AMD NAVI GPU.

Actual results:
High GPU power consumption while idling, GPU heating and fans spinning up while
doing nothing on the computer.

Expected results:
Low power consumption and low GPU heat.

Operational System:
Arch Linux (latest packages avaliable from the repository)

Additional Information:
Here's my tlp configuration (keep in mind: that same configuration was applied
on kernel 5.9.14 and 5.4.90, both working properly with 3W at 75Hz):

RADEON_POWER_PROFILE_ON_AC=high
RADEON_DPM_PERF_LEVEL_ON_AC=auto
RADEON_DPM_STATE_ON_AC=performance

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