https://bugs.freedesktop.org/show_bug.cgi?id=110865
--- Comment #13 from Dieter Nützel Dieter@nuetzel-hh.de --- (In reply to Dieter Nützel from comment #12)
(In reply to Alex Deucher from comment #9)
Created attachment 144983 [details] [review] [review] fix DC code
Can you try applying both of these patches? Assuming both of your monitors have the same timing this might work.
Didn't apply on amd-staging-drm-next, too.
BTW
Alex, is this the same problem? My card never was below ~32 W (even with single monitor but I have two identical HDMI 1920x1080) PSTATE_xxxx is much higher than Martin's didn't saw "zero fan" / zero core (no spinning fans)
Polaris 20 / 8GB Sapphire Radeon RX 580 Nitro+ single monitor
GFX Clocks and Power: 300 MHz (MCLK) 300 MHz (SCLK) 600 MHz (PSTATE_SCLK) 1000 MHz (PSTATE_MCLK) 750 mV (VDDGFX) 32.17 W (average GPU)
GPU Temperature: 31 C GPU Load: 0 %
amdgpu-pci-0100 Adapter: PCI adapter vddgfx: +0.75 V fan1: 909 RPM (min = 0 RPM, max = 3200 RPM) temp1: +30.0°C (crit = +94.0°C, hyst = -273.1°C) power1: 32.09 W (cap = 175.00 W)