From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 108379] high idle power consumption
Date: Tue, 16 Oct 2018 03:37:54 +0000 [thread overview]
Message-ID: <bug-108379-502@http.bugs.freedesktop.org/> (raw)
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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.
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next reply other threads:[~2018-10-16 3:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 3:37 bugzilla-daemon [this message]
2018-10-16 15:43 ` [Bug 108379] high idle power consumption bugzilla-daemon
2018-10-19 15:31 ` bugzilla-daemon
2018-10-19 15:31 ` bugzilla-daemon
2018-10-19 15:36 ` bugzilla-daemon
2019-01-23 2:56 ` bugzilla-daemon
2019-06-29 6:31 ` bugzilla-daemon
2019-11-02 14:34 ` bugzilla-daemon
2019-11-19 8:59 ` bugzilla-daemon
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