| Bug ID | 106188 |
|---|---|
| Summary | Can't successfully set pstates in pp_od_clk_voltage |
| Product | DRI |
| Version | unspecified |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | tempel.julian@gmail.com |
Hello,
I specified "amdgpu.ppfeaturemask=0xffffffff" as a boot parameter so I could
access "/sys/class/drm/card0/device/pp_od_clk_voltage".
The pstate table for source and memory clocks looks correct.
When I run "echo "s 7 1209 900" /sys/class/drm/card0/device/pp_od_clk_voltage",
it returns "s 7 1209 900 /sys/class/drm/card0/device/pp_od_clk_voltage".
When I run "echo "c" /sys/class/drm/card0/device/pp_od_clk_voltage" afterwards,
it returns "c /sys/class/drm/card0/device/pp_od_clk_voltage".
However, the change is not applied. When I do "cat
/sys/class/drm/card0/device/pp_od_clk_voltage", it still says "7: 1196Mhz
1006 mV".
And when I run "watch -n 0.5 cat /sys/kernel/debug/dri/0/amdgpu_pm_info", it
reports
" 1196 MHz (SCLK)
981 mV (VDDGFX)
".
Am I making a mistake somewhere or should it work like this?
I also tried "echo "manual" >
/sys/class/drm/card0/device/power_dpm_force_performance_level" and setting
pstates 5-7, but that didn't help either.
In the documentation, I read that pp_od_clk_voltage should also include
OD_range, but it's not there for me.
Linux drm-next-4.18-wip 4.16.1.52132fd03
MSI RX 560 Aero ITX
Thanks!
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