https://bugzilla.kernel.org/show_bug.cgi?id=202043
Ivan Avdeev (lists@w23.ru) changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |lists@w23.ru
--- Comment #4 from Ivan Avdeev (lists@w23.ru) --- I have the very same issue on Vega 64. Changing any voltage value from stock even by 1mV leads to severe throttling.
E.g.: ``` echo "manual" > $DEV/power_dpm_force_performance_level echo "2" > $DEV/pp_sclk_od echo "2" > $DEV/pp_mclk_od echo "s 7 1663 1190" > $DEV/pp_od_clk_voltage # stock = 1200 echo "c" > $DEV/pp_od_clk_voltage ```
Will result in 0.5x performance and stutter.
This doesn't happen on windows on the same hardware.
Card: MSI Radeon RX Vega 64 Air Boost 8G OC Kernels tried: 4.20, 5.0-rc2, 5.0.2 Mesa: 18.3.3, 18.3.4 MB: ASUS Prime X399-A, bios 0808 CPU: Threadripper 1950X