APU model: A8-3500M with Radeon HD 6620G.
Laptop model: Acer Aspire 7560G.
According to official specs of this APU
GPU core clock on high profile should be 444 MHz, but even when I set high profile manually
~# cat /sys/class/drm/card0/device/power_method
~# cat /sys/class/drm/card0/device/power_profile
GPU core clock is not 444 MHz anyway, even below 200 MHz:
~$ cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 200000 kHz
current engine clock: 7990 kHz
default memory clock: 667000 kHz
Maybe output of radeon_pm_info is incorrect, because change between different profiles and dynpm make no difference in radeon_pm_info information.
Reproduceable with Linux 3.2 and Linux 3.4rc3. dmesg of 3.4rc3 boot process attached. Is there any additional information I need to provide?
Created attachment 72934 [details]
Created attachment 72935 [details]
Created attachment 72936 [details]
Should be resolved now (in Linux 3.11) by AMD Power Management patches.
P.S. Hopefully I set right bugreport status.