Created attachment 143547 [details]
dmesg output
I overwrite "pp_od_clk_voltage" to control the voltage, but I have a problem.
The GPU voltage represents the value of
"/sys/class/drm/card0/device/hwmon/hwmon0/in0_input"
If I set "pp_od_clk_voltage" before starting Xorg/compton/WM, the GPU voltage
will be locked at 1200mv.
If I set "pp_od_clk_voltage" after starting Xorg/compton/WM, the GPU is locked
to 1200mv after a heavy load.
Unless I set "echo c > /sys/class/drm/card0/device/pp_od_clk_voltage" again,
the idle voltage will return to 900-950mv.But still higher than the set value.
Then we have a new problem.I can't control the "P7" voltage by setting
"pp_od_clk_voltage". The value in "pp_od_clk_voltage" can be changed, but the
reading is always 1200mv when the GPU jumps to "P7".
I set "P6" and "P7" to the same value to prevent the GPU from jumping to "P7"
My "pp_od_clk_voltage" setting:
OD_SCLK:
0: 852Mhz 800mV
1: 974Mhz 825mV
2: 1096Mhz 850mV
3: 1218Mhz 875mV
4: 1340Mhz 900mV
5: 1462Mhz 925mV
6: 1584Mhz 950mV
7: 1584Mhz 950mV
OD_MCLK:
0: 167Mhz 800mV
1: 500Mhz 800mV
2: 700Mhz 900mV
3: 800Mhz 950mV
OD_RANGE:
SCLK: 852MHz 2400MHz
MCLK: 167MHz 1500MHz
VDDC: 800mV 1200mV
Default "pp_od_clk_voltage" setting
OD_SCLK:
0: 852Mhz 800mV
1: 991Mhz 900mV
2: 1138Mhz 950mV
3: 1269Mhz 1000mV
4: 1312Mhz 1050mV
5: 1474Mhz 1100mV
6: 1538Mhz 1150mV
7: 1590Mhz 1200mV
OD_MCLK:
0: 167Mhz 800mV
1: 500Mhz 800mV
2: 700Mhz 900mV
3: 800Mhz 950mV
OD_RANGE:
SCLK: 852MHz 2400MHz
MCLK: 167MHz 1500MHz
VDDC: 800mV 1200mV
RYZEN 1700
MSI B350M MORTAR
PowerColor Radeon RX Vega 56
Linux 5.0.0-arch1-1-ARCH #1 SMP PREEMPT Mon Mar 4 14:11:43 UTC 2019 x86_64
GNU/Linux
Thanks!