https://bugs.freedesktop.org/show_bug.cgi?id=66963
--- Comment #21 from Sergey orbitgray@ukr.net --- Here is '/sys/kernel/debug/dri/0/radeon_pm_info' output I get:
1. with dpm=1 uvd vclk: 0 dclk: 0 power level 1 sclk: 30000 mclk: 40500 vddc: 900
2. without dpm=1 default engine clock: 500000 kHz current engine clock: 499500 kHz default memory clock: 500000 kHz current memory clock: 495000 kHz voltage: 1000 mV PCIE lanes: 16
The output format differs, but if clocks values dimensions are the same, then it is about 10 times less the in (2)