https://bugs.freedesktop.org/show_bug.cgi?id=108379
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.
https://bugs.freedesktop.org/show_bug.cgi?id=108379
--- Comment #1 from Alex Deucher alexdeucher@gmail.com --- Please attach your xorg log (if using X) and dmesg output.
https://bugs.freedesktop.org/show_bug.cgi?id=108379
--- Comment #2 from grmat@sub.red --- Created attachment 142098 --> https://bugs.freedesktop.org/attachment.cgi?id=142098&action=edit xorg log
https://bugs.freedesktop.org/show_bug.cgi?id=108379
--- Comment #3 from grmat@sub.red --- Created attachment 142099 --> https://bugs.freedesktop.org/attachment.cgi?id=142099&action=edit dmesg output
https://bugs.freedesktop.org/show_bug.cgi?id=108379
grmat@sub.red changed:
What |Removed |Added ---------------------------------------------------------------------------- Attachment #142098|0 |1 is obsolete| |
--- Comment #4 from grmat@sub.red --- Created attachment 142100 --> https://bugs.freedesktop.org/attachment.cgi?id=142100&action=edit xorg log
https://bugs.freedesktop.org/show_bug.cgi?id=108379
John john.ettedgui@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |john.ettedgui@gmail.com
--- Comment #5 from John john.ettedgui@gmail.com --- Is there anything we can do to help this?
https://bugs.freedesktop.org/show_bug.cgi?id=108379
--- Comment #6 from grmat@sub.red --- The SCLK is still fixed at max clock with WQHD, 144 Hz. Is Polaris considered legacy already?
https://bugs.freedesktop.org/show_bug.cgi?id=108379
--- Comment #7 from xc juha@inbox.lv --- I have RX470 and high idle power consumption has been present since hdmi/dp audio has been in kernel. Power consumption meter readings are ~20w higher with audio enabled. I am using Gentoo and compiling kernel without hdmi/dp audio support normalizes consumption.
https://bugs.freedesktop.org/show_bug.cgi?id=108379
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED
--- Comment #8 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/560.
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