Comment # 64
on bug 93826
from iuno@posteo.net
(In reply to Alex Deucher from comment #63) > > Are you forcing the power state to high? The mclk shouldn't be affected by > the display clock. No, setting the refresh rate to 144 results in high mclk, even when I set power_dpm_force_performance_level to low or pp_dpm_mclk to 0. Using 120 Hz, I could echo 0 or 1 to pp_dpm_mclk. I also got the power meter on now: memory dpm state 0 (150 MHz): 77 watts memory dpm state 1 (1250 MHz): 112 watts So there is a difference of 35 watts. Using Windows, I'm below the 80 Watts even with 144 Hz.
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