https://bugs.freedesktop.org/show_bug.cgi?id=101653
Bug ID: 101653 Summary: FAN speed is too high when displays are off Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: alexander@tsoy.me
Created attachment 132364 --> https://bugs.freedesktop.org/attachment.cgi?id=132364&action=edit kernel log
While investigating bug #101528, I've noticed another issue: FAN speed is too high when display are off.
Display is off: $ cat /sys/class/hwmon/hwmon6/fan1_input 1914
Display is on: $ cat /sys/class/hwmon/hwmon6/fan1_input 941
In both cases sclk, mclk and pcie are in the same lowest state.
GPU: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Tonga PRO [Radeon R9 285/380] [1002:6939] (rev f1) (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited / Sapphire Technology Tonga PRO [Radeon R9 285/380] [174b:e305]
kernel: $ uname -r 4.11.7-gentoo