https://bugs.freedesktop.org/show_bug.cgi?id=107141
Bug ID: 107141 Summary: Manual setting of pp_dpm_sclk resets after monitor off/on (rx 480) 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: krystian.zajdel@gmail.com
Created attachment 140483 --> https://bugs.freedesktop.org/attachment.cgi?id=140483&action=edit dmesg
Manual setting of pp_dpm_sclk resets after monitor off/on.
1.setting: echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level echo 2 > /sys/class/drm/card0/device/pp_dpm_sclk echo 95 > /sys/class/drm/card0/device/hwmon/hwmon1/pwm1
2. checking: cat /sys/class/drm/card0/device/pp_dpm_sclk 0: 300Mhz 1: 608Mhz 2: 910Mhz * 3: 1077Mhz 4: 1145Mhz 5: 1191Mhz 6: 1236Mhz 7: 1303Mhz
cat /sys/class/drm/card0/device/power_dpm_force_performance_level manual
cat /sys/class/drm/card0/device/hwmon/hwmon1/pwm1 91
3. switching monitor off/on
4. checking again: cat /sys/class/drm/card0/device/pp_dpm_sclk 0: 300Mhz 1: 608Mhz 2: 910Mhz 3: 1077Mhz 4: 1145Mhz 5: 1191Mhz 6: 1236Mhz 7: 1303Mhz *
cat /sys/class/drm/card0/device/power_dpm_force_performance_level manual
cat /sys/class/drm/card0/device/hwmon/hwmon1/pwm1 91
The card is under opencl load (blender) but the problem exists regardless of the load. So, the dpm_performance_level still says manual but the clock is changed to auto again.
GPU: rx480 (MSI) connected via DisplayPort (I didn't try HDMI) OS: Slackware current Affected kernels (that I've tried): 4.17.1, 4.17.2, 4.17.3, 4.18rc3, 4.18.0-rc1-custom-g6becad35ec8a-dirty
Kernels that work properly (the ones I've tried): 4.16.14, 4.16.15, 4.16.17.
It's my first bug report so I apologize in advance for any mistakes.