>> BTW, which generations/families/types(mobile...) do support phase shedding? > > Southern Islands and Sea Islands dGPU parts as far as I know. Erf, for tahiti discret gpu, the atombios rom does not have a VOLTAGE_OBJ_PHASE_LUT for VOLTAGE_TYPE_VDDC. I probably miss something in dpm code. regards, -- Sylvain BERTRAND